Update copyright dates with scripts/update-copyrights

I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master

139 files changed, 139 insertions, 139 deletions

diff --git a/string/Makefile b/string/Makefile
index c5b8909f37..d17626ed39 100644
--- a/string/Makefile
+++ b/string/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2020 Free Software Foundation, Inc.
+# Copyright (C) 1991-2021 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/_strerror.c b/string/_strerror.c
index da3b22f5b1..0ae8286bf8 100644
--- a/string/_strerror.c
+++ b/string/_strerror.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/argz-addsep.c b/string/argz-addsep.c
index 19065aa9c2..9c1926795d 100644
--- a/string/argz-addsep.c
+++ b/string/argz-addsep.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
 
diff --git a/string/argz-append.c b/string/argz-append.c
index c8f6a9c957..e1df16c2f0 100644
--- a/string/argz-append.c
+++ b/string/argz-append.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>
 
diff --git a/string/argz-count.c b/string/argz-count.c
index f46ea063e7..2b68317a33 100644
--- a/string/argz-count.c
+++ b/string/argz-count.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>
 
diff --git a/string/argz-create.c b/string/argz-create.c
index 0bb952a6ec..f97e9147f2 100644
--- a/string/argz-create.c
+++ b/string/argz-create.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>
 
diff --git a/string/argz-ctsep.c b/string/argz-ctsep.c
index 6a84e18dab..230ad0d68d 100644
--- a/string/argz-ctsep.c
+++ b/string/argz-ctsep.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
 
diff --git a/string/argz-delete.c b/string/argz-delete.c
index 45763957d1..1f569c67ce 100644
--- a/string/argz-delete.c
+++ b/string/argz-delete.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.org>
 
diff --git a/string/argz-extract.c b/string/argz-extract.c
index fc8b68e7cc..fda440128f 100644
--- a/string/argz-extract.c
+++ b/string/argz-extract.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.org>
 
diff --git a/string/argz-insert.c b/string/argz-insert.c
index f2e152ec89..fdd15fe235 100644
--- a/string/argz-insert.c
+++ b/string/argz-insert.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>
 
diff --git a/string/argz-next.c b/string/argz-next.c
index 86d9eb5731..82597c3bc9 100644
--- a/string/argz-next.c
+++ b/string/argz-next.c
@@ -1,5 +1,5 @@
 /* Iterate through the elements of an argz block.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.org>
 
diff --git a/string/argz-replace.c b/string/argz-replace.c
index b3f67417ee..37fcc91029 100644
--- a/string/argz-replace.c
+++ b/string/argz-replace.c
@@ -1,5 +1,5 @@
 /* String replacement in an argz vector
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>
 
diff --git a/string/argz-stringify.c b/string/argz-stringify.c
index 8452993e37..a52d5f5eff 100644
--- a/string/argz-stringify.c
+++ b/string/argz-stringify.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.org>
 
diff --git a/string/argz.h b/string/argz.h
index f030650dea..c2f78f55b5 100644
--- a/string/argz.h
+++ b/string/argz.h
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated arg vectors.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/basename.c b/string/basename.c
index 18386e8a04..d5b5d4763d 100644
--- a/string/basename.c
+++ b/string/basename.c
@@ -1,5 +1,5 @@
 /* Return the name-within-directory of a file name.
-   Copyright (C) 1996-2020 Free Software Foundation, Inc.
+   Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/bcopy.c b/string/bcopy.c
index 7367f1cf80..302bbbd1c6 100644
--- a/string/bcopy.c
+++ b/string/bcopy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/bits/endian.h b/string/bits/endian.h
index 1892b999d1..6372c6f52b 100644
--- a/string/bits/endian.h
+++ b/string/bits/endian.h
@@ -1,5 +1,5 @@
 /* Endian macros for string.h functions
-   Copyright (C) 1992-2020 Free Software Foundation, Inc.
+   Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/bits/string_fortified.h b/string/bits/string_fortified.h
index 92d75f10fa..67ae2c6b50 100644
--- a/string/bits/string_fortified.h
+++ b/string/bits/string_fortified.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/bits/strings_fortified.h b/string/bits/strings_fortified.h
index 7752faf4e3..8e77c3f618 100644
--- a/string/bits/strings_fortified.h
+++ b/string/bits/strings_fortified.h
@@ -1,5 +1,5 @@
 /* Fortify macros for strings.h functions.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/bug-strcoll2.c b/string/bug-strcoll2.c
index 7badabd2f8..020a9c446f 100644
--- a/string/bug-strcoll2.c
+++ b/string/bug-strcoll2.c
@@ -1,5 +1,5 @@
 /* Bug 18589: sort-test.sh fails at random.
-   Copyright (C) 2015-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/byteswap.h b/string/byteswap.h
index 8f6939717c..e9da7a4f68 100644
--- a/string/byteswap.h
+++ b/string/byteswap.h
@@ -1,5 +1,5 @@
 /* Swap byte order for 16, 32 and 64 bit values
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/bzero.c b/string/bzero.c
index b42de08ebc..9c6d4906ff 100644
--- a/string/bzero.c
+++ b/string/bzero.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/endian.h b/string/endian.h
index 0256ee4446..b8c5f7f33b 100644
--- a/string/endian.h
+++ b/string/endian.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/envz.c b/string/envz.c
index 8be2853dab..09ee14f691 100644
--- a/string/envz.c
+++ b/string/envz.c
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated environment vectors
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.org>
 
diff --git a/string/envz.h b/string/envz.h
index b0fe98c01d..7f1e642693 100644
--- a/string/envz.h
+++ b/string/envz.h
@@ -1,5 +1,5 @@
 /* Routines for dealing with '\0' separated environment vectors
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/explicit_bzero.c b/string/explicit_bzero.c
index 894ab3bb35..85b893b2ca 100644
--- a/string/explicit_bzero.c
+++ b/string/explicit_bzero.c
@@ -1,5 +1,5 @@
 /* Erasure of sensitive data, generic implementation.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/ffs.c b/string/ffs.c
index d51f4beb90..ee48f8ce71 100644
--- a/string/ffs.c
+++ b/string/ffs.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/ffsll.c b/string/ffsll.c
index 980c68c21c..ac69c93f42 100644
--- a/string/ffsll.c
+++ b/string/ffsll.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/memccpy.c b/string/memccpy.c
index 29d156464f..842153f6f5 100644
--- a/string/memccpy.c
+++ b/string/memccpy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/memchr.c b/string/memchr.c
index c9a6922af7..ddd417d2ad 100644
--- a/string/memchr.c
+++ b/string/memchr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se) and
diff --git a/string/memcmp.c b/string/memcmp.c
index 81502873fc..9b46d7a905 100644
--- a/string/memcmp.c
+++ b/string/memcmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/memcpy.c b/string/memcpy.c
index 2cb4c76515..b5504ae0b0 100644
--- a/string/memcpy.c
+++ b/string/memcpy.c
@@ -1,6 +1,6 @@
 /* Copy memory to memory until the specified number of bytes
    has been copied.  Overlap is NOT handled correctly.
-   Copyright (C) 1991-2020 Free Software Foundation, Inc.
+   Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/memfrob.c b/string/memfrob.c
index 0905925a72..150125ca93 100644
--- a/string/memfrob.c
+++ b/string/memfrob.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/memmem.c b/string/memmem.c
index 6c4d6d5825..20ab5cd1ea 100644
--- a/string/memmem.c
+++ b/string/memmem.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/memmove.c b/string/memmove.c
index b281d77046..71da8a6779 100644
--- a/string/memmove.c
+++ b/string/memmove.c
@@ -1,6 +1,6 @@
 /* Copy memory to memory until the specified number of bytes
    has been copied.  Overlap is handled correctly.
-   Copyright (C) 1991-2020 Free Software Foundation, Inc.
+   Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/memory.h b/string/memory.h
index 700e56e76e..caa94d3056 100644
--- a/string/memory.h
+++ b/string/memory.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/mempcpy.c b/string/mempcpy.c
index 03630f55d0..121b7506a7 100644
--- a/string/mempcpy.c
+++ b/string/mempcpy.c
@@ -1,7 +1,7 @@
 /* Copy memory to memory until the specified number of bytes
    has been copied, return pointer to following byte.
    Overlap is NOT handled correctly.
-   Copyright (C) 1991-2020 Free Software Foundation, Inc.
+   Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/memrchr.c b/string/memrchr.c
index 715d8f8f5b..5915c5744a 100644
--- a/string/memrchr.c
+++ b/string/memrchr.c
@@ -1,5 +1,5 @@
 /* memrchr -- find the last occurrence of a byte in a memory block
-   Copyright (C) 1991-2020 Free Software Foundation, Inc.
+   Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se) and
diff --git a/string/memset.c b/string/memset.c
index 9c213e82dc..7c186d42e5 100644
--- a/string/memset.c
+++ b/string/memset.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/rawmemchr.c b/string/rawmemchr.c
index d6ce8209be..59bbeeaa42 100644
--- a/string/rawmemchr.c
+++ b/string/rawmemchr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/sigabbrev_np.c b/string/sigabbrev_np.c
index a5ac6da053..fbe7af367c 100644
--- a/string/sigabbrev_np.c
+++ b/string/sigabbrev_np.c
@@ -1,5 +1,5 @@
 /* Return string describing signal abbreviation.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/sigdescr_np.c b/string/sigdescr_np.c
index bf2d462b9c..f7e8b3cc63 100644
--- a/string/sigdescr_np.c
+++ b/string/sigdescr_np.c
@@ -1,5 +1,5 @@
 /* Return string describing signal.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/stpcpy.c b/string/stpcpy.c
index 8600a71db1..800baa8fc8 100644
--- a/string/stpcpy.c
+++ b/string/stpcpy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/stpncpy.c b/string/stpncpy.c
index 5186e91c1a..d998bf30d3 100644
--- a/string/stpncpy.c
+++ b/string/stpncpy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/str-two-way.h b/string/str-two-way.h
index de247fbc98..ce61983739 100644
--- a/string/str-two-way.h
+++ b/string/str-two-way.h
@@ -1,5 +1,5 @@
 /* Byte-wise substring search, using the Two-Way algorithm.
-   Copyright (C) 2008-2020 Free Software Foundation, Inc.
+   Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Eric Blake <ebb9@byu.net>, 2008.
 
diff --git a/string/stratcliff.c b/string/stratcliff.c
index 4b2ac8b197..71d56f3a4e 100644
--- a/string/stratcliff.c
+++ b/string/stratcliff.c
@@ -1,5 +1,5 @@
 /* Test for string function add boundaries of usable memory.
-   Copyright (C) 1996-2020 Free Software Foundation, Inc.
+   Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/string/strcasecmp.c b/string/strcasecmp.c
index 913a092c7b..0462c67ccf 100644
--- a/string/strcasecmp.c
+++ b/string/strcasecmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strcasecmp_l.c b/string/strcasecmp_l.c
index 479dddecc4..9030c6e097 100644
--- a/string/strcasecmp_l.c
+++ b/string/strcasecmp_l.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strcasestr.c b/string/strcasestr.c
index d2964c5548..66430c154c 100644
--- a/string/strcasestr.c
+++ b/string/strcasestr.c
@@ -1,5 +1,5 @@
 /* Return the offset of one string within another.
-   Copyright (C) 1994-2020 Free Software Foundation, Inc.
+   Copyright (C) 1994-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strcat.c b/string/strcat.c
index 023694441e..d425db0102 100644
--- a/string/strcat.c
+++ b/string/strcat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strchr.c b/string/strchr.c
index 8c9a3bdd8e..a4df3a206d 100644
--- a/string/strchr.c
+++ b/string/strchr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se) and
diff --git a/string/strchrnul.c b/string/strchrnul.c
index ccc993c2c6..0821269dac 100644
--- a/string/strchrnul.c
+++ b/string/strchrnul.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se) and
diff --git a/string/strcmp.c b/string/strcmp.c
index 9e7d1f6c59..24c6374583 100644
--- a/string/strcmp.c
+++ b/string/strcmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strcoll.c b/string/strcoll.c
index 21ba085af3..e074c52ff7 100644
--- a/string/strcoll.c
+++ b/string/strcoll.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
 
diff --git a/string/strcoll_l.c b/string/strcoll_l.c
index d06c4edd23..5ce9bafd30 100644
--- a/string/strcoll_l.c
+++ b/string/strcoll_l.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@gnu.org>, 1995.
 
diff --git a/string/strcpy.c b/string/strcpy.c
index 4a747478b5..d2a8531f1f 100644
--- a/string/strcpy.c
+++ b/string/strcpy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strcspn.c b/string/strcspn.c
index 8f30d33f8b..7498a0ca15 100644
--- a/string/strcspn.c
+++ b/string/strcspn.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strdup.c b/string/strdup.c
index 20d3a21c2b..52bfdd8d17 100644
--- a/string/strdup.c
+++ b/string/strdup.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strerror.c b/string/strerror.c
index 35c749016e..f0b04be13b 100644
--- a/string/strerror.c
+++ b/string/strerror.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strerror_l.c b/string/strerror_l.c
index a203e9e80b..a381c79c5a 100644
--- a/string/strerror_l.c
+++ b/string/strerror_l.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2007-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strerrordesc_np.c b/string/strerrordesc_np.c
index cdaf3a7f44..0ad7d93af6 100644
--- a/string/strerrordesc_np.c
+++ b/string/strerrordesc_np.c
@@ -1,5 +1,5 @@
 /* Return string describing error number.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strerrorname_np.c b/string/strerrorname_np.c
index bc337d20c2..2b068ad7a5 100644
--- a/string/strerrorname_np.c
+++ b/string/strerrorname_np.c
@@ -1,5 +1,5 @@
 /* Return string describing errno name.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strfry.c b/string/strfry.c
index d0ef9aeda7..9211e6f100 100644
--- a/string/strfry.c
+++ b/string/strfry.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/string-inlines.c b/string/string-inlines.c
index 4ff0ed847c..56673fc7fc 100644
--- a/string/string-inlines.c
+++ b/string/string-inlines.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/string.h b/string/string.h
index b0be00c0f7..04e1b7067d 100644
--- a/string/string.h
+++ b/string/string.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strings.h b/string/strings.h
index 87882ec0a7..ae7c7a308a 100644
--- a/string/strings.h
+++ b/string/strings.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strlen.c b/string/strlen.c
index f934e1a1e8..5d9366c2c0 100644
--- a/string/strlen.c
+++ b/string/strlen.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se);
diff --git a/string/strncase.c b/string/strncase.c
index d129ed7cc3..04fbe82c70 100644
--- a/string/strncase.c
+++ b/string/strncase.c
@@ -1,6 +1,6 @@
 /* Compare at most N characters of two strings without taking care for
    the case.
-   Copyright (C) 1992-2020 Free Software Foundation, Inc.
+   Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strncase_l.c b/string/strncase_l.c
index fb54dcb9a9..39c5c5ed4b 100644
--- a/string/strncase_l.c
+++ b/string/strncase_l.c
@@ -1,6 +1,6 @@
 /* Compare at most N characters of two strings without taking care for
    the case using given locale.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strncat.c b/string/strncat.c
index bbe7c280db..70ba412e35 100644
--- a/string/strncat.c
+++ b/string/strncat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strncmp.c b/string/strncmp.c
index 19a39862f0..00779d5402 100644
--- a/string/strncmp.c
+++ b/string/strncmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strncpy.c b/string/strncpy.c
index ca430ab1aa..13b94fd2c0 100644
--- a/string/strncpy.c
+++ b/string/strncpy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strndup.c b/string/strndup.c
index 71a20ab24a..297193573f 100644
--- a/string/strndup.c
+++ b/string/strndup.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strnlen.c b/string/strnlen.c
index f76a4851d6..99c882bb03 100644
--- a/string/strnlen.c
+++ b/string/strnlen.c
@@ -1,5 +1,5 @@
 /* Find the length of STRING, but scan at most MAXLEN characters.
-   Copyright (C) 1991-2020 Free Software Foundation, Inc.
+   Copyright (C) 1991-2021 Free Software Foundation, Inc.
    Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    Based on strlen written by Torbjorn Granlund (tege@sics.se),
diff --git a/string/strpbrk.c b/string/strpbrk.c
index ae489cd2d1..d83e95e002 100644
--- a/string/strpbrk.c
+++ b/string/strpbrk.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strrchr.c b/string/strrchr.c
index 7a6ef5aa0b..37ab55d202 100644
--- a/string/strrchr.c
+++ b/string/strrchr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strsep.c b/string/strsep.c
index c486de73e5..58f7d09b63 100644
--- a/string/strsep.c
+++ b/string/strsep.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strsignal.c b/string/strsignal.c
index a9b911ce6e..6b5d60edae 100644
--- a/string/strsignal.c
+++ b/string/strsignal.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strspn.c b/string/strspn.c
index b8ca1b0d66..2bdbc82437 100644
--- a/string/strspn.c
+++ b/string/strspn.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strstr.c b/string/strstr.c
index 673dca97cb..3275ee1766 100644
--- a/string/strstr.c
+++ b/string/strstr.c
@@ -1,5 +1,5 @@
 /* Return the offset of one string within another.
-   Copyright (C) 1994-2020 Free Software Foundation, Inc.
+   Copyright (C) 1994-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strtok.c b/string/strtok.c
index 03269c8526..2733e60c3e 100644
--- a/string/strtok.c
+++ b/string/strtok.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strtok_r.c b/string/strtok_r.c
index b8359c8653..9ce0858749 100644
--- a/string/strtok_r.c
+++ b/string/strtok_r.c
@@ -1,5 +1,5 @@
 /* Reentrant string tokenizer.  Generic version.
-   Copyright (C) 1991-2020 Free Software Foundation, Inc.
+   Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/strverscmp.c b/string/strverscmp.c
index 124f2b57f9..0920c32750 100644
--- a/string/strverscmp.c
+++ b/string/strverscmp.c
@@ -1,5 +1,5 @@
 /* Compare strings while treating digits characters numerically.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jean-François Bignolles <bignolle@ecoledoc.ibp.fr>, 1997.
 
diff --git a/string/strxfrm.c b/string/strxfrm.c
index 43a8188c6b..4d4e481ff0 100644
--- a/string/strxfrm.c
+++ b/string/strxfrm.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
 
diff --git a/string/strxfrm_l.c b/string/strxfrm_l.c
index 96a7ef2d36..efee1a9372 100644
--- a/string/strxfrm_l.c
+++ b/string/strxfrm_l.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@gnu.org>, 1995.
 
diff --git a/string/swab.c b/string/swab.c
index 4b993d4eeb..f5a452a55c 100644
--- a/string/swab.c
+++ b/string/swab.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-bcopy.c b/string/test-bcopy.c
index 67a3f1b80f..b5a0665c62 100644
--- a/string/test-bcopy.c
+++ b/string/test-bcopy.c
@@ -1,5 +1,5 @@
 /* Test and measure bcopy functions.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-bzero.c b/string/test-bzero.c
index dd44f0ef14..7181c970a0 100644
--- a/string/test-bzero.c
+++ b/string/test-bzero.c
@@ -1,5 +1,5 @@
 /* Test and measure bzero functions.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-endian-file-scope.c b/string/test-endian-file-scope.c
index 2855831e3a..cd53255102 100644
--- a/string/test-endian-file-scope.c
+++ b/string/test-endian-file-scope.c
@@ -1,5 +1,5 @@
 /* Test endian.h endian-conversion macros accepted at file scope.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-endian-sign-conversion.c b/string/test-endian-sign-conversion.c
index d1c7a4415e..ea6d15e88d 100644
--- a/string/test-endian-sign-conversion.c
+++ b/string/test-endian-sign-conversion.c
@@ -1,5 +1,5 @@
 /* Test endian.h endian-conversion macros work with -Wsign-conversion.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-endian-types.c b/string/test-endian-types.c
index 37e93be8a2..15c602e94b 100644
--- a/string/test-endian-types.c
+++ b/string/test-endian-types.c
@@ -1,5 +1,5 @@
 /* Test endian.h endian-conversion macros always return the correct type.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-explicit_bzero.c b/string/test-explicit_bzero.c
index f4c1d893c0..da26f9005e 100644
--- a/string/test-explicit_bzero.c
+++ b/string/test-explicit_bzero.c
@@ -1,5 +1,5 @@
 /* Test and measure explicit_bzero.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-ffs.c b/string/test-ffs.c
index af03df90a1..cb4268ef4d 100644
--- a/string/test-ffs.c
+++ b/string/test-ffs.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1994-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1994-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
      On-Line Applications Research Corporation.
diff --git a/string/test-memccpy.c b/string/test-memccpy.c
index cb2adb536d..e0b1d5ae52 100644
--- a/string/test-memccpy.c
+++ b/string/test-memccpy.c
@@ -1,5 +1,5 @@
 /* Test and measure memccpy functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-memchr.c b/string/test-memchr.c
index 5dd0aa5470..665edc32af 100644
--- a/string/test-memchr.c
+++ b/string/test-memchr.c
@@ -1,5 +1,5 @@
 /* Test memchr functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-memcmp.c b/string/test-memcmp.c
index 57b4a63816..02ea9b782d 100644
--- a/string/test-memcmp.c
+++ b/string/test-memcmp.c
@@ -1,5 +1,5 @@
 /* Test and measure memcmp functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
    Added wmemcmp support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011.
diff --git a/string/test-memcpy.c b/string/test-memcpy.c
index 52f34316cd..2e9c6bd099 100644
--- a/string/test-memcpy.c
+++ b/string/test-memcpy.c
@@ -1,5 +1,5 @@
 /* Test and measure memcpy functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-memmem.c b/string/test-memmem.c
index ae5bbd71f6..624d3106bf 100644
--- a/string/test-memmem.c
+++ b/string/test-memmem.c
@@ -1,5 +1,5 @@
 /* Test and measure memmem functions.
-   Copyright (C) 2008-2020 Free Software Foundation, Inc.
+   Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@redhat.com>, 2008.
 
diff --git a/string/test-memmove.c b/string/test-memmove.c
index 9a6340058c..2e3ce75b9b 100644
--- a/string/test-memmove.c
+++ b/string/test-memmove.c
@@ -1,5 +1,5 @@
 /* Test and measure memmove functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-mempcpy.c b/string/test-mempcpy.c
index 5a45d9e421..f80b014d41 100644
--- a/string/test-mempcpy.c
+++ b/string/test-mempcpy.c
@@ -1,5 +1,5 @@
 /* Test and measure mempcpy functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-memrchr.c b/string/test-memrchr.c
index 48e1f521b4..1a3b9ce69d 100644
--- a/string/test-memrchr.c
+++ b/string/test-memrchr.c
@@ -1,5 +1,5 @@
 /* Test and measure memrchr functions.
-   Copyright (C) 2013-2020 Free Software Foundation, Inc.
+   Copyright (C) 2013-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-memset.c b/string/test-memset.c
index 75e16e19b1..eb71517390 100644
--- a/string/test-memset.c
+++ b/string/test-memset.c
@@ -1,5 +1,5 @@
 /* Test memset functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-rawmemchr.c b/string/test-rawmemchr.c
index 5c79e2da42..085098aba8 100644
--- a/string/test-rawmemchr.c
+++ b/string/test-rawmemchr.c
@@ -1,5 +1,5 @@
 /* Test and measure memchr functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-sig_np.c b/string/test-sig_np.c
index 8b5117050c..8dade537fa 100644
--- a/string/test-sig_np.c
+++ b/string/test-sig_np.c
@@ -1,5 +1,5 @@
 /* Test and sigabbrev_np and sigdescr_np.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-stpcpy.c b/string/test-stpcpy.c
index c124516d46..ec1de99abd 100644
--- a/string/test-stpcpy.c
+++ b/string/test-stpcpy.c
@@ -1,5 +1,5 @@
 /* Test stpcpy functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-stpncpy.c b/string/test-stpncpy.c
index 5736c7689e..de11fee63b 100644
--- a/string/test-stpncpy.c
+++ b/string/test-stpncpy.c
@@ -1,5 +1,5 @@
 /* Test and measure stpncpy functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strcasecmp.c b/string/test-strcasecmp.c
index 77d62a7c9d..b380150cb7 100644
--- a/string/test-strcasecmp.c
+++ b/string/test-strcasecmp.c
@@ -1,5 +1,5 @@
 /* Test and measure strcasecmp functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strcasestr.c b/string/test-strcasestr.c
index 6d81921795..045156e6b8 100644
--- a/string/test-strcasestr.c
+++ b/string/test-strcasestr.c
@@ -1,5 +1,5 @@
 /* Test and measure strcasestr functions.
-   Copyright (C) 2010-2020 Free Software Foundation, Inc.
+   Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@redhat.com>, 2010.
 
diff --git a/string/test-strcat.c b/string/test-strcat.c
index a7f1d76092..dea1558b0c 100644
--- a/string/test-strcat.c
+++ b/string/test-strcat.c
@@ -1,5 +1,5 @@
 /* Test strcat functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strchr.c b/string/test-strchr.c
index 64fb2bab80..5b6022746c 100644
--- a/string/test-strchr.c
+++ b/string/test-strchr.c
@@ -1,5 +1,5 @@
 /* Test STRCHR functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
    Added wcschr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
diff --git a/string/test-strchrnul.c b/string/test-strchrnul.c
index 1e2bec654d..75143a7e69 100644
--- a/string/test-strchrnul.c
+++ b/string/test-strchrnul.c
@@ -1,6 +1,6 @@
 /* Test and measure strchrnul function.
 
-   Copyright (C) 2011-2020 Free Software Foundation, Inc.
+   Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-strcmp.c b/string/test-strcmp.c
index 6a840fc04b..7feababf4d 100644
--- a/string/test-strcmp.c
+++ b/string/test-strcmp.c
@@ -1,5 +1,5 @@
 /* Test and measure strcmp and wcscmp functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
    Added wcscmp support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011.
diff --git a/string/test-strcpy.c b/string/test-strcpy.c
index d6efcdfde6..4c0a04f85d 100644
--- a/string/test-strcpy.c
+++ b/string/test-strcpy.c
@@ -1,5 +1,5 @@
 /* Test and measure strcpy functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
    Added wcscpy support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
diff --git a/string/test-strcspn.c b/string/test-strcspn.c
index 9cc2ce6b50..ef028be0c7 100644
--- a/string/test-strcspn.c
+++ b/string/test-strcspn.c
@@ -1,5 +1,5 @@
 /* Test strcspn functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strerror-errno.c b/string/test-strerror-errno.c
index f3b1a98d22..8007184827 100644
--- a/string/test-strerror-errno.c
+++ b/string/test-strerror-errno.c
@@ -1,6 +1,6 @@
 /* BZ #24024 strerror and errno test.
 
-   Copyright (C) 2019-2020 Free Software Foundation, Inc.
+   Copyright (C) 2019-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-string.h b/string/test-string.h
index 0efe5d870e..febde61040 100644
--- a/string/test-string.h
+++ b/string/test-string.h
@@ -1,5 +1,5 @@
 /* Test and measure string and memory functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strlen.c b/string/test-strlen.c
index a4f72c1907..6e67d1f1f1 100644
--- a/string/test-strlen.c
+++ b/string/test-strlen.c
@@ -1,5 +1,5 @@
 /* Test and measure STRLEN functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
    Added wcslen support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
diff --git a/string/test-strncasecmp.c b/string/test-strncasecmp.c
index 502222ed1d..ace94e83ec 100644
--- a/string/test-strncasecmp.c
+++ b/string/test-strncasecmp.c
@@ -1,5 +1,5 @@
 /* Test and measure strncasecmp functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strncat.c b/string/test-strncat.c
index abbacb95c6..2ef917b820 100644
--- a/string/test-strncat.c
+++ b/string/test-strncat.c
@@ -1,5 +1,5 @@
 /* Test strncat functions.
-   Copyright (C) 2011-2020 Free Software Foundation, Inc.
+   Copyright (C) 2011-2021 Free Software Foundation, Inc.
    Contributed by Intel Corporation.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/test-strncmp.c b/string/test-strncmp.c
index 962679b384..10b34de8d2 100644
--- a/string/test-strncmp.c
+++ b/string/test-strncmp.c
@@ -1,5 +1,5 @@
 /* Test strncmp and wcsncmp functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strncpy.c b/string/test-strncpy.c
index e902c1764e..84a3b83bbc 100644
--- a/string/test-strncpy.c
+++ b/string/test-strncpy.c
@@ -1,5 +1,5 @@
 /* Test strncpy functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strnlen.c b/string/test-strnlen.c
index 80ac9e8602..61eb521dc1 100644
--- a/string/test-strnlen.c
+++ b/string/test-strnlen.c
@@ -1,5 +1,5 @@
 /* Test strlen functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strpbrk.c b/string/test-strpbrk.c
index 0e4241d8d4..3f81c2edc3 100644
--- a/string/test-strpbrk.c
+++ b/string/test-strpbrk.c
@@ -1,5 +1,5 @@
 /* Test and measure strpbrk functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strrchr.c b/string/test-strrchr.c
index 20faaaca79..9f85dc681e 100644
--- a/string/test-strrchr.c
+++ b/string/test-strrchr.c
@@ -1,5 +1,5 @@
 /* Test and measure STRCHR functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
    Added wcsrrchr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>,
diff --git a/string/test-strspn.c b/string/test-strspn.c
index 57ca4cd29b..ccbed1ca2f 100644
--- a/string/test-strspn.c
+++ b/string/test-strspn.c
@@ -1,5 +1,5 @@
 /* Test and measure strspn functions.
-   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
diff --git a/string/test-strstr.c b/string/test-strstr.c
index 06dea30ff1..2c40d929f2 100644
--- a/string/test-strstr.c
+++ b/string/test-strstr.c
@@ -1,5 +1,5 @@
 /* Test and measure strstr functions.
-   Copyright (C) 2010-2020 Free Software Foundation, Inc.
+   Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Ulrich Drepper <drepper@redhat.com>, 2010.
 
diff --git a/string/testcopy.c b/string/testcopy.c
index 4625d6603e..b8dde6f087 100644
--- a/string/testcopy.c
+++ b/string/testcopy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1990-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1990-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/tester.c b/string/tester.c
index b7acf29c81..778160ae6e 100644
--- a/string/tester.c
+++ b/string/tester.c
@@ -1,5 +1,5 @@
 /* Tester for string functions.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-bswap.c b/string/tst-bswap.c
index e1db708214..f79570b6b4 100644
--- a/string/tst-bswap.c
+++ b/string/tst-bswap.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>.
 
diff --git a/string/tst-cmp.c b/string/tst-cmp.c
index e73025cfdf..d06d7e54e3 100644
--- a/string/tst-cmp.c
+++ b/string/tst-cmp.c
@@ -1,5 +1,5 @@
 /* Alignment/padding coverage test for string comparison.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-inlcall.c b/string/tst-inlcall.c
index 4f01f4c6bc..99d9d18a2f 100644
--- a/string/tst-inlcall.c
+++ b/string/tst-inlcall.c
@@ -1,5 +1,5 @@
 /* Tester for calling inline string functions.
-   Copyright (C) 1998-2020 Free Software Foundation, Inc.
+   Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-memmove-overflow.c b/string/tst-memmove-overflow.c
index ffbcd04308..61172461b6 100644
--- a/string/tst-memmove-overflow.c
+++ b/string/tst-memmove-overflow.c
@@ -1,5 +1,5 @@
 /* Test for signed comparision bug in memmove (bug 25620).
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-strcoll-overflow.c b/string/tst-strcoll-overflow.c
index 40c45f28c3..61ae4d67fe 100644
--- a/string/tst-strcoll-overflow.c
+++ b/string/tst-strcoll-overflow.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2013-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2013-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-strerror.c b/string/tst-strerror.c
index 1fc202e4ea..46dc4c6b69 100644
--- a/string/tst-strerror.c
+++ b/string/tst-strerror.c
@@ -1,6 +1,6 @@
 /* Test for strerror, strerror_r, and strerror_l.
 
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-strsignal.c b/string/tst-strsignal.c
index 2c549f4620..ccf51f4924 100644
--- a/string/tst-strsignal.c
+++ b/string/tst-strsignal.c
@@ -1,6 +1,6 @@
 /* Test for strsignal.
 
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-strtok_r.c b/string/tst-strtok_r.c
index e87851dee2..b89f560f2c 100644
--- a/string/tst-strtok_r.c
+++ b/string/tst-strtok_r.c
@@ -1,5 +1,5 @@
 /* Test strtok_r regression for BZ #14229.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/tst-xbzero-opt.c b/string/tst-xbzero-opt.c
index 4013e6e6d6..ffd7e340fe 100644
--- a/string/tst-xbzero-opt.c
+++ b/string/tst-xbzero-opt.c
@@ -1,5 +1,5 @@
 /* Test that explicit_bzero block clears are not optimized out.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/string/wordcopy.c b/string/wordcopy.c
index c4a2296b19..cbac9c85b4 100644
--- a/string/wordcopy.c
+++ b/string/wordcopy.c
@@ -1,5 +1,5 @@
 /* _memcopy.c -- subroutines for memory copy functions.
-   Copyright (C) 1991-2020 Free Software Foundation, Inc.
+   Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
diff --git a/string/xpg-strerror.c b/string/xpg-strerror.c
index 95311b75e9..e576b057da 100644
--- a/string/xpg-strerror.c
+++ b/string/xpg-strerror.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or