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

29 files changed, 29 insertions, 29 deletions

diff --git a/socket/Makefile b/socket/Makefile
index 125c042cab..600891d5d1 100644
--- a/socket/Makefile
+++ b/socket/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/socket/accept.c b/socket/accept.c
index 2f293813c8..59f59210ef 100644
--- a/socket/accept.c
+++ b/socket/accept.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/socket/accept4.c b/socket/accept4.c
index 711f58c444..4b257fdd31 100644
--- a/socket/accept4.c
+++ b/socket/accept4.c
@@ -1,4 +1,4 @@
-/* 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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/socket/bind.c b/socket/bind.c
index 5b9bee0d1b..d4155b1d68 100644
--- a/socket/bind.c
+++ b/socket/bind.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/socket/bits/socket2.h b/socket/bits/socket2.h
index 05418ba9c3..9c8ac69624 100644
--- a/socket/bits/socket2.h
+++ b/socket/bits/socket2.h
@@ -1,5 +1,5 @@
 /* Checking macros for socket functions.
-   Copyright (C) 2005-2020 Free Software Foundation, Inc.
+   Copyright (C) 2005-2021 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/socket/connect.c b/socket/connect.c
index f63b597cc6..9bf81b3ac1 100644
--- a/socket/connect.c
+++ b/socket/connect.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/socket/getpeername.c b/socket/getpeername.c
index b2c59ce752..e449a1e99d 100644
--- a/socket/getpeername.c
+++ b/socket/getpeername.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/socket/getsockname.c b/socket/getsockname.c
index e54fac4d41..7bfdbaeba0 100644
--- a/socket/getsockname.c
+++ b/socket/getsockname.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/socket/getsockopt.c b/socket/getsockopt.c
index 4300130f3d..f82b4b5497 100644
--- a/socket/getsockopt.c
+++ b/socket/getsockopt.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/socket/isfdtype.c b/socket/isfdtype.c
index 170173ec21..3deeac180d 100644
--- a/socket/isfdtype.c
+++ b/socket/isfdtype.c
@@ -1,5 +1,5 @@
 /* isfdtype - Determine whether descriptor has given property.  Stub version.
-   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/socket/listen.c b/socket/listen.c
index 9f4764ca4f..f5821f5f9b 100644
--- a/socket/listen.c
+++ b/socket/listen.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/socket/opensock.c b/socket/opensock.c
index 4c65940c5a..37148d4743 100644
--- a/socket/opensock.c
+++ b/socket/opensock.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/socket/recv.c b/socket/recv.c
index 260a62deaa..56949b711d 100644
--- a/socket/recv.c
+++ b/socket/recv.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/socket/recvfrom.c b/socket/recvfrom.c
index 2fac2f30c0..cc83964c11 100644
--- a/socket/recvfrom.c
+++ b/socket/recvfrom.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/socket/recvmmsg.c b/socket/recvmmsg.c
index 174bff8f54..dd72fe3cb0 100644
--- a/socket/recvmmsg.c
+++ b/socket/recvmmsg.c
@@ -1,5 +1,5 @@
 /* Receive multiple messages on a socket.  Stub version.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/socket/recvmsg.c b/socket/recvmsg.c
index e6e540e9a6..36fcf5ba79 100644
--- a/socket/recvmsg.c
+++ b/socket/recvmsg.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/socket/sa_len.c b/socket/sa_len.c
index aefb03eaf4..e67d9c38a0 100644
--- a/socket/sa_len.c
+++ b/socket/sa_len.c
@@ -1,5 +1,5 @@
 /* Helper for SA_LEN macro.
-   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/socket/send.c b/socket/send.c
index ad53a9ec42..2fbf3afe11 100644
--- a/socket/send.c
+++ b/socket/send.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/socket/sendmmsg.c b/socket/sendmmsg.c
index 04cdac10a8..bf3bc80de5 100644
--- a/socket/sendmmsg.c
+++ b/socket/sendmmsg.c
@@ -1,5 +1,5 @@
 /* Send multiple messages on a socket.  Stub version.
-   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/socket/sendmsg.c b/socket/sendmsg.c
index b8d2dddf61..b8be1fb2ea 100644
--- a/socket/sendmsg.c
+++ b/socket/sendmsg.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/socket/sendto.c b/socket/sendto.c
index ca9b480a65..c5557ce165 100644
--- a/socket/sendto.c
+++ b/socket/sendto.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/socket/setsockopt.c b/socket/setsockopt.c
index 4cb69abb9c..2440670046 100644
--- a/socket/setsockopt.c
+++ b/socket/setsockopt.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/socket/shutdown.c b/socket/shutdown.c
index e0d6a159f2..39e4939283 100644
--- a/socket/shutdown.c
+++ b/socket/shutdown.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/socket/sockatmark.c b/socket/sockatmark.c
index e5d736a5c3..21fe95ed6e 100644
--- a/socket/sockatmark.c
+++ b/socket/sockatmark.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2021 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/socket/socket.c b/socket/socket.c
index ee0b953634..f811e4b503 100644
--- a/socket/socket.c
+++ b/socket/socket.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/socket/socketpair.c b/socket/socketpair.c
index c1fabbbd5c..ccb77593b2 100644
--- a/socket/socketpair.c
+++ b/socket/socketpair.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/socket/sys/socket.h b/socket/sys/socket.h
index 7780c00ecb..949851a6ce 100644
--- a/socket/sys/socket.h
+++ b/socket/sys/socket.h
@@ -1,5 +1,5 @@
 /* Declarations of socket constants, types, and 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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/socket/sys/un.h b/socket/sys/un.h
index 95400f78a5..02224f90b2 100644
--- a/socket/sys/un.h
+++ b/socket/sys/un.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/socket/tst-accept4.c b/socket/tst-accept4.c
index 8e1d7fd1f2..6d2f3df9c7 100644
--- a/socket/tst-accept4.c
+++ b/socket/tst-accept4.c
@@ -1,5 +1,5 @@
 /* Test the accept4 function with differing flags arguments.
-   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