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

16 files changed, 16 insertions, 16 deletions

diff --git a/wctype/Makefile b/wctype/Makefile
index 2a183ea..a354020 100644
--- a/wctype/Makefile
+++ b/wctype/Makefile
@@ -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/wctype/bits/wctype-wchar.h b/wctype/bits/wctype-wchar.h
index 01827a7..8eca926 100644
--- a/wctype/bits/wctype-wchar.h
+++ b/wctype/bits/wctype-wchar.h
@@ -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/wctype/iswctype.c b/wctype/iswctype.c
index 67d110b..50da5e9 100644
--- a/wctype/iswctype.c
+++ b/wctype/iswctype.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/wctype/iswctype_l.c b/wctype/iswctype_l.c
index 6ce1f08..216e44f 100644
--- a/wctype/iswctype_l.c
+++ b/wctype/iswctype_l.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/wctype/test_wcfuncs.c b/wctype/test_wcfuncs.c
index 66bb912..46f60e9 100644
--- a/wctype/test_wcfuncs.c
+++ b/wctype/test_wcfuncs.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/wctype/test_wctype.c b/wctype/test_wctype.c
index 3686aed..457b955 100644
--- a/wctype/test_wctype.c
+++ b/wctype/test_wctype.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/wctype/towctrans.c b/wctype/towctrans.c
index fefd345..5ba83db 100644
--- a/wctype/towctrans.c
+++ b/wctype/towctrans.c
@@ -1,5 +1,5 @@
 /* Map wide character using given mapping.
-   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/wctype/towctrans_l.c b/wctype/towctrans_l.c
index ca30aef..3261008 100644
--- a/wctype/towctrans_l.c
+++ b/wctype/towctrans_l.c
@@ -1,5 +1,5 @@
 /* Map wide character using given mapping and locale.
-   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/wctype/wcfuncs.c b/wctype/wcfuncs.c
index e86a1ad..451575b 100644
--- a/wctype/wcfuncs.c
+++ b/wctype/wcfuncs.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/wctype/wcfuncs_l.c b/wctype/wcfuncs_l.c
index 1e02e35..1cab341 100644
--- a/wctype/wcfuncs_l.c
+++ b/wctype/wcfuncs_l.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/wctype/wchar-lookup.h b/wctype/wchar-lookup.h
index 746d389..a11fcad 100644
--- a/wctype/wchar-lookup.h
+++ b/wctype/wchar-lookup.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2022 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/wctype/wctrans.c b/wctype/wctrans.c
index 580d625..e991911 100644
--- a/wctype/wctrans.c
+++ b/wctype/wctrans.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/wctype/wctrans_l.c b/wctype/wctrans_l.c
index b53f939..057e70c 100644
--- a/wctype/wctrans_l.c
+++ b/wctype/wctrans_l.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/wctype/wctype.c b/wctype/wctype.c
index b141b43..8b085c9 100644
--- a/wctype/wctype.c
+++ b/wctype/wctype.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/wctype/wctype.h b/wctype/wctype.h
index a561802..7e87fd3 100644
--- a/wctype/wctype.h
+++ b/wctype/wctype.h
@@ -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/wctype/wctype_l.c b/wctype/wctype_l.c
index a2122da..473d7ed 100644
--- a/wctype/wctype_l.c
+++ b/wctype/wctype_l.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