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

46 files changed, 46 insertions, 46 deletions

diff --git a/login/Makefile b/login/Makefile
index d897057..bc72e6e 100644
--- a/login/Makefile
+++ b/login/Makefile
@@ -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/login/endutxent.c b/login/endutxent.c
index a66ee7b..0029132 100644
--- a/login/endutxent.c
+++ b/login/endutxent.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/forkpty.c b/login/forkpty.c
index 9209fd8..1e91bd8 100644
--- a/login/forkpty.c
+++ b/login/forkpty.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
diff --git a/login/getlogin.c b/login/getlogin.c
index ff08016..73bfcb5 100644
--- a/login/getlogin.c
+++ b/login/getlogin.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/login/getlogin_r.c b/login/getlogin_r.c
index 0eb0ce8..3302639 100644
--- a/login/getlogin_r.c
+++ b/login/getlogin_r.c
@@ -1,5 +1,5 @@
 /* Reentrant function to return the current login name.  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/login/getlogin_r_chk.c b/login/getlogin_r_chk.c
index 328ed97..69ad4b1 100644
--- a/login/getlogin_r_chk.c
+++ b/login/getlogin_r_chk.c
@@ -1,4 +1,4 @@
-/* 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/login/getpt.c b/login/getpt.c
index 0223fbe..585bc3b 100644
--- a/login/getpt.c
+++ b/login/getpt.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
diff --git a/login/getutent.c b/login/getutent.c
index 3a8b78c..c2428bf 100644
--- a/login/getutent.c
+++ b/login/getutent.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@cygnus.com>, 1996.
 
diff --git a/login/getutent_r.c b/login/getutent_r.c
index 7bf5fe1..0af48ac 100644
--- a/login/getutent_r.c
+++ b/login/getutent_r.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@cygnus.com>
    and Paul Janzen <pcj@primenet.com>, 1996.
diff --git a/login/getutid.c b/login/getutid.c
index 0c5c106..d986b9d 100644
--- a/login/getutid.c
+++ b/login/getutid.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@cygnus.com>, 1996.
 
diff --git a/login/getutid_r.c b/login/getutid_r.c
index c655c4f..68f40a6 100644
--- a/login/getutid_r.c
+++ b/login/getutid_r.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@cygnus.com>
    and Paul Janzen <pcj@primenet.com>, 1996.
diff --git a/login/getutline.c b/login/getutline.c
index 34ea861..2c8320c 100644
--- a/login/getutline.c
+++ b/login/getutline.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@cygnus.com>, 1996.
 
diff --git a/login/getutline_r.c b/login/getutline_r.c
index 41ad9ff..39b8a58 100644
--- a/login/getutline_r.c
+++ b/login/getutline_r.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@cygnus.com>
    and Paul Janzen <pcj@primenet.com>, 1996.
diff --git a/login/getutmp.c b/login/getutmp.c
index e9a5fe6..0401e04 100644
--- a/login/getutmp.c
+++ b/login/getutmp.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/login/getutmpx.c b/login/getutmpx.c
index 250a355..228726a 100644
--- a/login/getutmpx.c
+++ b/login/getutmpx.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/login/getutxent.c b/login/getutxent.c
index ca90a13..a6794ba 100644
--- a/login/getutxent.c
+++ b/login/getutxent.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/getutxid.c b/login/getutxid.c
index d53993f..ae3b9fe 100644
--- a/login/getutxid.c
+++ b/login/getutxid.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/getutxline.c b/login/getutxline.c
index f1d2821..274716b 100644
--- a/login/getutxline.c
+++ b/login/getutxline.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/grantpt.c b/login/grantpt.c
index ef58a95..7dc5db3 100644
--- a/login/grantpt.c
+++ b/login/grantpt.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
diff --git a/login/login.c b/login/login.c
index cc26d29..d280c13 100644
--- a/login/login.c
+++ b/login/login.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@cygnus.com>, 1996.
 
diff --git a/login/logout.c b/login/logout.c
index 091312e..3def97f 100644
--- a/login/logout.c
+++ b/login/logout.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@cygnus.com>, 1996.
 
diff --git a/login/logwtmp.c b/login/logwtmp.c
index 050219c..1a7c46e 100644
--- a/login/logwtmp.c
+++ b/login/logwtmp.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@cygnus.com>, 1996.
 
diff --git a/login/openpty.c b/login/openpty.c
index 9002d96..22845b6 100644
--- a/login/openpty.c
+++ b/login/openpty.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
diff --git a/login/programs/pt_chown.c b/login/programs/pt_chown.c
index b7df9c5..61154b0 100644
--- a/login/programs/pt_chown.c
+++ b/login/programs/pt_chown.c
@@ -1,5 +1,5 @@
 /* pt_chmod - helper program for `grantpt'.
-   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.
    Contributed by C. Scott Ananian <cananian@alumni.princeton.edu>, 1998.
 
diff --git a/login/programs/utmpdump.c b/login/programs/utmpdump.c
index 12ad0e8..b17156e 100644
--- a/login/programs/utmpdump.c
+++ b/login/programs/utmpdump.c
@@ -1,5 +1,5 @@
 /* utmpdump - dump utmp-like files.
-   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 Mark Kettenis <kettenis@phys.uva.nl>, 1997.
 
diff --git a/login/ptsname.c b/login/ptsname.c
index 38e531a..c42f27d 100644
--- a/login/ptsname.c
+++ b/login/ptsname.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
diff --git a/login/ptsname_r_chk.c b/login/ptsname_r_chk.c
index 218705d..32724ac 100644
--- a/login/ptsname_r_chk.c
+++ b/login/ptsname_r_chk.c
@@ -1,4 +1,4 @@
-/* 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/login/pty.h b/login/pty.h
index 9da81ff..cdb4852 100644
--- a/login/pty.h
+++ b/login/pty.h
@@ -1,5 +1,5 @@
 /* Functions for pseudo TTY handling.
-   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/login/pututxline.c b/login/pututxline.c
index eec8851..8b38f1f 100644
--- a/login/pututxline.c
+++ b/login/pututxline.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/setlogin.c b/login/setlogin.c
index 12332c0..d11518d 100644
--- a/login/setlogin.c
+++ b/login/setlogin.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/login/setutxent.c b/login/setutxent.c
index 37b2498..63be342 100644
--- a/login/setutxent.c
+++ b/login/setutxent.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/tst-getlogin.c b/login/tst-getlogin.c
index e75e210..dbee791 100644
--- a/login/tst-getlogin.c
+++ b/login/tst-getlogin.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/login/tst-grantpt.c b/login/tst-grantpt.c
index 8ca901e..cfd0b6d 100644
--- a/login/tst-grantpt.c
+++ b/login/tst-grantpt.c
@@ -1,5 +1,5 @@
 /* Test for grantpt, unlockpt error corner cases.
-   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/login/tst-ptsname.c b/login/tst-ptsname.c
index 4032a68..9de8dc8 100644
--- a/login/tst-ptsname.c
+++ b/login/tst-ptsname.c
@@ -1,5 +1,5 @@
 /* Test for ptsname/ptsname_r.
-   Copyright (C) 2014-2020 Free Software Foundation, Inc.
+   Copyright (C) 2014-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Aurelien Jarno <aurelien@aurel32.net>, 2014.
 
diff --git a/login/tst-pututxline-cache.c b/login/tst-pututxline-cache.c
index f397f98..227b05e 100644
--- a/login/tst-pututxline-cache.c
+++ b/login/tst-pututxline-cache.c
@@ -1,5 +1,5 @@
 /* Test case for cache invalidation after concurrent write (bug 24882).
-   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/login/tst-pututxline-lockfail.c b/login/tst-pututxline-lockfail.c
index 3d4b1d2..7549894 100644
--- a/login/tst-pututxline-lockfail.c
+++ b/login/tst-pututxline-lockfail.c
@@ -1,5 +1,5 @@
 /* Test the lock upgrade path in tst-pututxline.
-   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/login/tst-updwtmpx.c b/login/tst-updwtmpx.c
index 423dbde..c9183f2 100644
--- a/login/tst-updwtmpx.c
+++ b/login/tst-updwtmpx.c
@@ -1,5 +1,5 @@
 /* Basic test coverage for updwtmpx.
-   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/login/tst-utmp.c b/login/tst-utmp.c
index 5c2cdfe..bcd6e17 100644
--- a/login/tst-utmp.c
+++ b/login/tst-utmp.c
@@ -1,5 +1,5 @@
 /* Tests for UTMP 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/unlockpt.c b/login/unlockpt.c
index 3db6199..1a8e4b4 100644
--- a/login/unlockpt.c
+++ b/login/unlockpt.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
 
diff --git a/login/updwtmp.c b/login/updwtmp.c
index f6cd515..0558198 100644
--- a/login/updwtmp.c
+++ b/login/updwtmp.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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
 
diff --git a/login/updwtmpx.c b/login/updwtmpx.c
index f95306b..ba06645 100644
--- a/login/updwtmpx.c
+++ b/login/updwtmpx.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
 
diff --git a/login/utmp-private.h b/login/utmp-private.h
index fceb7b9..00632ce 100644
--- a/login/utmp-private.h
+++ b/login/utmp-private.h
@@ -1,5 +1,5 @@
 /* Internal definitions and declarations for UTMP functions.
-   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>
    and Paul Janzen <pcj@primenet.com>, 1996.
diff --git a/login/utmp.h b/login/utmp.h
index 3de2b85..7fc2d5c 100644
--- a/login/utmp.h
+++ b/login/utmp.h
@@ -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/login/utmp_file.c b/login/utmp_file.c
index f095139..8c0b3a0 100644
--- a/login/utmp_file.c
+++ b/login/utmp_file.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@cygnus.com>
    and Paul Janzen <pcj@primenet.com>, 1996.
diff --git a/login/utmpname.c b/login/utmpname.c
index 90224af..c85c27f 100644
--- a/login/utmpname.c
+++ b/login/utmpname.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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
 
diff --git a/login/utmpxname.c b/login/utmpxname.c
index 530322a..5245374 100644
--- a/login/utmpxname.c
+++ b/login/utmpxname.c
@@ -1,4 +1,4 @@
-/* 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.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.