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

40 files changed, 40 insertions, 40 deletions

diff --git a/iconv/Makefile b/iconv/Makefile
index f9b51e23ec..659857dd8c 100644
--- a/iconv/Makefile
+++ b/iconv/Makefile
@@ -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/iconv/dummy-repertoire.c b/iconv/dummy-repertoire.c
index 1fce769b8c..d0cf40547d 100644
--- a/iconv/dummy-repertoire.c
+++ b/iconv/dummy-repertoire.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.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
diff --git a/iconv/gconv.c b/iconv/gconv.c
index a62a011fd0..81a5b7eca5 100644
--- a/iconv/gconv.c
+++ b/iconv/gconv.c
@@ -1,6 +1,6 @@
 /* Convert characters in input buffer using conversion descriptor to
    output buffer.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv.h b/iconv/gconv.h
index 6add596642..4b0ca89459 100644
--- a/iconv/gconv.h
+++ b/iconv/gconv.h
@@ -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/iconv/gconv_builtin.c b/iconv/gconv_builtin.c
index 601513be58..6323d09f85 100644
--- a/iconv/gconv_builtin.c
+++ b/iconv/gconv_builtin.c
@@ -1,5 +1,5 @@
 /* Table for builtin transformation mapping.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_builtin.h b/iconv/gconv_builtin.h
index bddf33dfc0..b9c9e45bd0 100644
--- a/iconv/gconv_builtin.h
+++ b/iconv/gconv_builtin.h
@@ -1,5 +1,5 @@
 /* Builtin transformations.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_cache.c b/iconv/gconv_cache.c
index b326cd19e2..642cc731eb 100644
--- a/iconv/gconv_cache.c
+++ b/iconv/gconv_cache.c
@@ -1,5 +1,5 @@
 /* Cache handling for iconv modules.
-   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 Ulrich Drepper <drepper@cygnus.com>, 2001.
 
diff --git a/iconv/gconv_charset.c b/iconv/gconv_charset.c
index 4ba0aa99f5..53e2113a1a 100644
--- a/iconv/gconv_charset.c
+++ b/iconv/gconv_charset.c
@@ -1,5 +1,5 @@
 /* Charset name normalization.
-   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/iconv/gconv_charset.h b/iconv/gconv_charset.h
index e9c122cf7e..285efa7eaa 100644
--- a/iconv/gconv_charset.h
+++ b/iconv/gconv_charset.h
@@ -1,5 +1,5 @@
 /* Charset name normalization.
-   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 Ulrich Drepper <drepper@cygnus.com>, 2001.
 
diff --git a/iconv/gconv_close.c b/iconv/gconv_close.c
index ac5114dca2..17a2585cfe 100644
--- a/iconv/gconv_close.c
+++ b/iconv/gconv_close.c
@@ -1,5 +1,5 @@
 /* Release any resource associated with given conversion descriptor.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_conf.c b/iconv/gconv_conf.c
index 735bd1f2d5..682f949834 100644
--- a/iconv/gconv_conf.c
+++ b/iconv/gconv_conf.c
@@ -1,5 +1,5 @@
 /* Handle configuration data.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_db.c b/iconv/gconv_db.c
index b16ac17c3f..af868e8023 100644
--- a/iconv/gconv_db.c
+++ b/iconv/gconv_db.c
@@ -1,5 +1,5 @@
 /* Provide access to the collection of available transformation modules.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_dl.c b/iconv/gconv_dl.c
index af02cc9f06..2bb9a9055a 100644
--- a/iconv/gconv_dl.c
+++ b/iconv/gconv_dl.c
@@ -1,5 +1,5 @@
 /* Handle loading/unloading of shared object for transformation.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h
index f721ce30ff..30a9286be2 100644
--- a/iconv/gconv_int.h
+++ b/iconv/gconv_int.h
@@ -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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_open.c b/iconv/gconv_open.c
index 2878620957..56bc390d73 100644
--- a/iconv/gconv_open.c
+++ b/iconv/gconv_open.c
@@ -1,5 +1,5 @@
 /* Find matching transformation algorithms and initialize steps.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c
index 963b29f246..a46560954b 100644
--- a/iconv/gconv_simple.c
+++ b/iconv/gconv_simple.c
@@ -1,5 +1,5 @@
 /* Simple transformations functions.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/gconv_trans.c b/iconv/gconv_trans.c
index a6e468e248..6faba3baa7 100644
--- a/iconv/gconv_trans.c
+++ b/iconv/gconv_trans.c
@@ -1,5 +1,5 @@
 /* Transliteration using the locale's data.
-   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/iconv/iconv.c b/iconv/iconv.c
index 97c894dcd4..c764f798cc 100644
--- a/iconv/iconv.c
+++ b/iconv/iconv.c
@@ -1,6 +1,6 @@
 /* Convert characters in input buffer using conversion descriptor to
    output buffer.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/iconv.h b/iconv/iconv.h
index a457001c0c..fdddf53d99 100644
--- a/iconv/iconv.h
+++ b/iconv/iconv.h
@@ -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/iconv/iconv_charmap.c b/iconv/iconv_charmap.c
index 5c4a208218..f76b3ce2b1 100644
--- a/iconv/iconv_charmap.c
+++ b/iconv/iconv_charmap.c
@@ -1,5 +1,5 @@
 /* Convert using charmaps and possibly iconv().
-   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 Ulrich Drepper <drepper@redhat.com>, 2001.
 
diff --git a/iconv/iconv_close.c b/iconv/iconv_close.c
index a19d3796a9..bded14535f 100644
--- a/iconv/iconv_close.c
+++ b/iconv/iconv_close.c
@@ -1,5 +1,5 @@
 /* Release any resource associated with given conversion descriptor.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/iconv_open.c b/iconv/iconv_open.c
index 5b30055c04..79e42a6172 100644
--- a/iconv/iconv_open.c
+++ b/iconv/iconv_open.c
@@ -1,5 +1,5 @@
 /* Get descriptor for character set conversion.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/iconv/iconv_prog.c b/iconv/iconv_prog.c
index d59979759c..d8c94a83e3 100644
--- a/iconv/iconv_prog.c
+++ b/iconv/iconv_prog.c
@@ -1,5 +1,5 @@
 /* Convert text in given files from the specified from-set to the to-set.
-   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 Ulrich Drepper <drepper@cygnus.com>, 1998.
 
diff --git a/iconv/iconv_prog.h b/iconv/iconv_prog.h
index 05df1e1cf6..56cc200346 100644
--- a/iconv/iconv_prog.h
+++ b/iconv/iconv_prog.h
@@ -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.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
diff --git a/iconv/iconvconfig.c b/iconv/iconvconfig.c
index 18c1ef37e3..c625c9ae26 100644
--- a/iconv/iconvconfig.c
+++ b/iconv/iconvconfig.c
@@ -1,5 +1,5 @@
 /* Generate fastloading iconv module configuration files.
-   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@redhat.com>, 2000.
 
diff --git a/iconv/iconvconfig.h b/iconv/iconvconfig.h
index 7f848186bd..82918ce972 100644
--- a/iconv/iconvconfig.h
+++ b/iconv/iconvconfig.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2021 Free Software Foundation, I