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 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines

20 files changed, 20 insertions, 20 deletions

diff --git a/grp/Makefile b/grp/Makefile
index a394023..48f3914 100644
--- a/grp/Makefile
+++ b/grp/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2021 Free Software Foundation, Inc.
+# Copyright (C) 1991-2022 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/grp/fgetgrent.c b/grp/fgetgrent.c
index 81bbd9d..fd2b4d3 100644
--- a/grp/fgetgrent.c
+++ b/grp/fgetgrent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/grp/fgetgrent_r.c b/grp/fgetgrent_r.c
index 115eb81..d6f5b9f 100644
--- a/grp/fgetgrent_r.c
+++ b/grp/fgetgrent_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/grp/getgrent.c b/grp/getgrent.c
index 4d7a24c..6d928da 100644
--- a/grp/getgrent.c
+++ b/grp/getgrent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/grp/getgrent_r.c b/grp/getgrent_r.c
index 13b6a9d..1b83145 100644
--- a/grp/getgrent_r.c
+++ b/grp/getgrent_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/grp/getgrgid.c b/grp/getgrgid.c
index 6c5bcf9..a29af1e 100644
--- a/grp/getgrgid.c
+++ b/grp/getgrgid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/grp/getgrgid_r.c b/grp/getgrgid_r.c
index cda5bcf..fcf7694 100644
--- a/grp/getgrgid_r.c
+++ b/grp/getgrgid_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/grp/getgrnam.c b/grp/getgrnam.c
index 759cb88..1967d2d 100644
--- a/grp/getgrnam.c
+++ b/grp/getgrnam.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/grp/getgrnam_r.c b/grp/getgrnam_r.c
index 0dd3a79..6135c55 100644
--- a/grp/getgrnam_r.c
+++ b/grp/getgrnam_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/grp/grp-merge.c b/grp/grp-merge.c
index 983237d..f311040 100644
--- a/grp/grp-merge.c
+++ b/grp/grp-merge.c
@@ -1,5 +1,5 @@
 /* Group merging implementation.
-   Copyright (C) 2016-2021 Free Software Foundation, Inc.
+   Copyright (C) 2016-2022 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/grp/grp-merge.h b/grp/grp-merge.h
index bc2a472..421fc68 100644
--- a/grp/grp-merge.h
+++ b/grp/grp-merge.h
@@ -1,5 +1,5 @@
 /* Group merging implementation.
-   Copyright (C) 2016-2021 Free Software Foundation, Inc.
+   Copyright (C) 2016-2022 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/grp/grp.h b/grp/grp.h
index 36f9954..db32f89 100644
--- a/grp/grp.h
+++ b/grp/grp.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/grp/initgroups.c b/grp/initgroups.c
index 6164d16..e3e966a 100644
--- a/grp/initgroups.c
+++ b/grp/initgroups.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1989, 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1989, 1991-2022 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/grp/putgrent.c b/grp/putgrent.c
index 0da6167..966ba2a 100644
--- a/grp/putgrent.c
+++ b/grp/putgrent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/grp/setgroups.c b/grp/setgroups.c
index 3aaea49..7916c51 100644
--- a/grp/setgroups.c
+++ b/grp/setgroups.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/grp/tst-initgroups1.c b/grp/tst-initgroups1.c
index 3ea7240..20d61cf 100644
--- a/grp/tst-initgroups1.c
+++ b/grp/tst-initgroups1.c
@@ -1,5 +1,5 @@
 /* Test that initgroups works.
-   Copyright (C) 2020-2021 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022 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/grp/tst-initgroups2.c b/grp/tst-initgroups2.c
index ea2c915..d525c34 100644
--- a/grp/tst-initgroups2.c
+++ b/grp/tst-initgroups2.c
@@ -1,5 +1,5 @@
 /* Test that initgroups works.
-   Copyright (C) 2020-2021 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022 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/grp/tst-putgrent.c b/grp/tst-putgrent.c
index 493267d..3805a56 100644
--- a/grp/tst-putgrent.c
+++ b/grp/tst-putgrent.c
@@ -1,5 +1,5 @@
 /* Test for processing of invalid group entries.  [BZ #18724]
-   Copyright (C) 2015-2021 Free Software Foundation, Inc.
+   Copyright (C) 2015-2022 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/grp/tst_fgetgrent.c b/grp/tst_fgetgrent.c
index 1abed52..dea9054 100644
--- a/grp/tst_fgetgrent.c
+++ b/grp/tst_fgetgrent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2022 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/grp/tst_fgetgrent.sh b/grp/tst_fgetgrent.sh
index ccdc6be..6d34cbc 100644
--- a/grp/tst_fgetgrent.sh
+++ b/grp/tst_fgetgrent.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Copyright (C) 1999-2021 Free Software Foundation, Inc.
+# Copyright (C) 1999-2022 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