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

41 files changed, 41 insertions, 41 deletions

diff --git a/intl/Makefile b/intl/Makefile
index 3195cb54ad..93478d87e8 100644
--- a/intl/Makefile
+++ b/intl/Makefile
@@ -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.
 
 # The GNU C Library is free software; you can redistribute it and/or
diff --git a/intl/bindtextdom.c b/intl/bindtextdom.c
index 964d9012a1..918f68beaf 100644
--- a/intl/bindtextdom.c
+++ b/intl/bindtextdom.c
@@ -1,5 +1,5 @@
 /* Implementation of the bindtextdomain(3) function
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/dcgettext.c b/intl/dcgettext.c
index 4e75b0f297..39d6d12d18 100644
--- a/intl/dcgettext.c
+++ b/intl/dcgettext.c
@@ -1,5 +1,5 @@
 /* Implementation of the dcgettext(3) function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/dcigettext.c b/intl/dcigettext.c
index bd332e71da..6d10aaada9 100644
--- a/intl/dcigettext.c
+++ b/intl/dcigettext.c
@@ -1,5 +1,5 @@
 /* Implementation of the internal dcigettext function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/dcngettext.c b/intl/dcngettext.c
index 3f672b5cbc..0e4ac5c516 100644
--- a/intl/dcngettext.c
+++ b/intl/dcngettext.c
@@ -1,5 +1,5 @@
 /* Implementation of the dcngettext(3) function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/dgettext.c b/intl/dgettext.c
index 3d8f393395..1a7f4ab8a4 100644
--- a/intl/dgettext.c
+++ b/intl/dgettext.c
@@ -1,5 +1,5 @@
 /* Implementation of the dgettext(3) function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/dngettext.c b/intl/dngettext.c
index 095b160a0f..79bc04a72b 100644
--- a/intl/dngettext.c
+++ b/intl/dngettext.c
@@ -1,5 +1,5 @@
 /* Implementation of the dngettext(3) function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/eval-plural.h b/intl/eval-plural.h
index b58c858c71..08a257da87 100644
--- a/intl/eval-plural.h
+++ b/intl/eval-plural.h
@@ -1,5 +1,5 @@
 /* Plural expression evaluation.
-   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/explodename.c b/intl/explodename.c
index e5bbc37008..0e3fdeac08 100644
--- a/intl/explodename.c
+++ b/intl/explodename.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/intl/finddomain.c b/intl/finddomain.c
index f88cb89ba0..b65df6fb54 100644
--- a/intl/finddomain.c
+++ b/intl/finddomain.c
@@ -1,5 +1,5 @@
 /* Handle list of needed message catalogs
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    Written by Ulrich Drepper <drepper@gnu.org>, 1995.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/intl/gettext.c b/intl/gettext.c
index b8c98ae19c..f839165f59 100644
--- a/intl/gettext.c
+++ b/intl/gettext.c
@@ -1,5 +1,5 @@
 /* Implementation of gettext(3) function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/gettextP.h b/intl/gettextP.h
index 5faee93bcc..38eb61fffd 100644
--- a/intl/gettextP.h
+++ b/intl/gettextP.h
@@ -1,5 +1,5 @@
 /* Header describing internals of libintl library.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/intl/gmo.h b/intl/gmo.h
index bd27ff7272..a45653488a 100644
--- a/intl/gmo.h
+++ b/intl/gmo.h
@@ -1,5 +1,5 @@
 /* Description of GNU message catalog format: general file layout.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/hash-string.c b/intl/hash-string.c
index 03db2fcb8c..4ac6e2975c 100644
--- a/intl/hash-string.c
+++ b/intl/hash-string.c
@@ -1,5 +1,5 @@
 /* Implements a string hashing function.
-   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/intl/hash-string.h b/intl/hash-string.h
index 8e40bb6ad7..0b7f4785fd 100644
--- a/intl/hash-string.h
+++ b/intl/hash-string.h
@@ -1,5 +1,5 @@
 /* Description of GNU message catalog format: string hashing function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/l10nflist.c b/intl/l10nflist.c
index ef27110f92..c24a3d33a9 100644
--- a/intl/l10nflist.c
+++ b/intl/l10nflist.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/intl/libintl.h b/intl/libintl.h
index 2fd0a31e8e..cee8c20fce 100644
--- a/intl/libintl.h
+++ b/intl/libintl.h
@@ -1,5 +1,5 @@
 /* Message catalogs for internationalization.
-   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.
    This file is derived from the file libgettext.h in the GNU gettext package.
 
diff --git a/intl/loadinfo.h b/intl/loadinfo.h
index 7b9f50047b..25c8d43d00 100644
--- a/intl/loadinfo.h
+++ b/intl/loadinfo.h
@@ -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/intl/loadmsgcat.c b/intl/loadmsgcat.c
index d44a4a0b14..4fda9b0219 100644
--- a/intl/loadmsgcat.c
+++ b/intl/loadmsgcat.c
@@ -1,5 +1,5 @@
 /* Load needed message catalogs.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/locale.alias b/intl/locale.alias
index bcde6a19c0..c0dd564fe0 100644
--- a/intl/locale.alias
+++ b/intl/locale.alias
@@ -1,5 +1,5 @@
 # Locale name alias data base.
-# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+# Copyright (C) 1996-2021 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/intl/localealias.c b/intl/localealias.c
index bc91a8461a..375af2b031 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -1,5 +1,5 @@
 /* Handle aliases for locale names.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/ngettext.c b/intl/ngettext.c
index 47f93ad698..360ae17dee 100644
--- a/intl/ngettext.c
+++ b/intl/ngettext.c
@@ -1,5 +1,5 @@
 /* Implementation of ngettext(3) function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/plural-exp.c b/intl/plural-exp.c
index a62fe14339..af39ec30b3 100644
--- a/intl/plural-exp.c
+++ b/intl/plural-exp.c
@@ -1,5 +1,5 @@
 /* Expression parsing for plural form selection.
-   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
    Written by Ulrich Drepper <drepper@cygnus.com>, 2000.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/intl/plural-exp.h b/intl/plural-exp.h
index c013cde101..5c6b6adec2 100644
--- a/intl/plural-exp.h
+++ b/intl/plural-exp.h
@@ -1,5 +1,5 @@
 /* Expression parsing and evaluation for plural form selection.
-   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
    Written by Ulrich Drepper <drepper@cygnus.com>, 2000.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/intl/plural.y b/intl/plural.y
index f69fba7c60..e02e74541c 100644
--- a/intl/plural.y
+++ b/intl/plural.y
@@ -1,6 +1,6 @@
 %{
 /* Expression parsing for plural form selection.
-   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
    Written by Ulrich Drepper <drepper@cygnus.com>, 2000.
 
    This program is free software: you can redistribute it and/or modify
diff --git a/intl/po2test.awk b/intl/po2test.awk
index 922e1a03d8..f1da3a7d62 100644
--- a/intl/po2test.awk
+++ b/intl/po2test.awk
@@ -1,5 +1,5 @@
 # po2test.awk - Convert Uniforum style .po file to C code for testing.
-# Copyright (C) 2012-2020 Free Software Foundation, Inc.
+# Copyright (C) 2012-2021 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/intl/textdomain.c b/intl/textdomain.c
index b0b67230aa..30294536fe 100644
--- a/intl/textdomain.c
+++ b/intl/textdomain.c
@@ -1,5 +1,5 @@
 /* Implementation of the textdomain(3) function.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
diff --git a/intl/tst-codeset.c b/intl/tst-codeset.c
index e9f6e5e09f..94d22310a4 100644
--- a/intl/tst-codeset.c
+++ b/intl/tst-codeset.c
@@ -1,5 +1,5 @@
 /* Test of bind_textdomain_codeset.
-   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.
    Contributed by Bruno Haible <haible@clisp.cons.org>, 2001.
 
diff --git a/intl/tst-gettext.c b/intl/tst-gettext.c
index a38fbd09df..99dc505fa3 100644
--- a/intl/tst-gettext.c
+++ b/intl/tst-gettext.c
@@ -1,5 +1,5 @@
 /* Test of the gettext functions.
-   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>, 2000.
 
diff --git a/intl/tst-gettext.sh b/intl/tst-gettext.sh
index d1ea30b05c..77864de18c 100755
--- a/intl/tst-gettext.sh
+++ b/intl/tst-gettext.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Test of gettext functions.
-# 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.
 
 # The GNU C Library is free software; you can redistribute it and/or
diff --git a/intl/tst-gettext2.c b/intl/tst-gettext2.c
index 84ec9a7e60..4433acdbdf 100644
--- a/intl/tst-gettext2.c
+++ b/intl/tst-gettext2.c
@@ -1,5 +1,5 @@
 /* Test of the gettext functions.
-   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 Thorsten Kukuk <kukuk@suse.de> and
    Andreas Jaeger <aj@suse.de>, 2000.
diff --git a/intl/tst-gettext2.sh b/intl/tst-gettext2.sh
index 315705540b..9f7557f33d 100644
--- a/intl/tst-gettext2.sh
+++ b/intl/tst-gettext2.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Test of gettext functions.
-# 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.
 
 # The GNU C Library is free software; you can redistribute it and/or
diff --git a/intl/tst-gettext3.c b/intl/tst-gettext3.c
index 3397808cf5..d785814784 100644
--- a/intl/tst-gettext3.c
+++ b/intl/tst-gettext3.c
@@ -1,6 +1,6 @@
 /* Test that the gettext() results come out in the correct encoding for
    locales that differ only in their encoding.
-   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.
    Contributed by Bruno Haible <bruno@clisp.org>, 2001, 2005.
 
diff --git a/intl/tst-gettext4.c b/intl/tst-gettext4.c
index 7e5493cad9..a63f36d267 100644
--- a/intl/tst-gettext4.c
+++ b/intl/tst-gettext4.c
@@ -1,6 +1,6 @@
 /* Test that gettext() in multithreaded applications works correctly if
    different threads operate in different locales with the same encoding.
-   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.
    Contributed by Bruno Haible <bruno@clisp.org>, 2005.
 
diff --git a/intl/tst-gettext4.sh b/intl/tst-gettext4.sh
index e5a9c7ca78..1ed63b8a79 100755
--- a/intl/tst-gettext4.sh
+++ b/intl/tst-gettext4.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Test that gettext() in multithreaded applications works correctly if
 # different threads operate in different locales with the same encoding.
-# 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/intl/tst-gettext5.c b/intl/tst-gettext5.c
index 714afd715e..3d298fe5c3 100644
--- a/intl/tst-gettext5.c
+++ b/intl/tst-gettext5.c
@@ -1,7 +1,7 @@
 /* Test that gettext() in multithreaded applications works correctly if
    different threads operate in different locales referring to the same
    catalog file but with different encodings.
-   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.
    Contributed by Bruno Haible <bruno@clisp.org>, 2005.
 
diff --git a/intl/tst-gettext6.c b/intl/tst-gettext6.c
index a9e559ec1b..cd5cc82932 100644
--- a/intl/tst-gettext6.c
+++ b/intl/tst-gettext6.c
@@ -1,5 +1,5 @@
 /* Test that gettext() in multithreaded applications works correctly.
-   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.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2008.
 
diff --git a/intl/tst-gettext6.sh b/intl/tst-gettext6.sh
index 0130a298b1..c6fa42b243 100644
--- a/intl/tst-gettext6.sh
+++ b/intl/tst-gettext6.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Test that gettext() in multithreaded applications works correctly.
-# 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/intl/tst-ngettext.c b/intl/tst-ngettext.c
index a3b43715f3..264292c034 100644
--- a/intl/tst-ngettext.c
+++ b/intl/tst-ngettext.c
@@ -1,5 +1,5 @@
 /* Test of the ngettext functions.
-   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>, 2000.
 
diff --git a/intl/tst-translit.c b/intl/tst-translit.c
index 6cce21fc53..3998330313 100644
--- a/intl/tst-translit.c
+++ b/intl/tst-translit.c
@@ -1,5 +1,5 @@
 /* Test of translitation in the gettext functions.
-   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>, 2000.
 
diff --git a/intl/tst-translit.sh b/intl/tst-translit.sh
index 9cd2237353..a70b9caec9 100755
--- a/intl/tst-translit.sh
+++ b/intl/tst-translit.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Test of transliteration in gettext functions.
-# 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.
 
 # The GNU C Library is free software; you can redistribute it and/or