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

7 files changed, 7 insertions, 7 deletions

diff --git a/assert/Makefile b/assert/Makefile
index 0008de34cb..f7cf8e9b77 100644
--- a/assert/Makefile
+++ b/assert/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/assert/__assert.c b/assert/__assert.c
index 640bbcf90d..7978e0421a 100644
--- a/assert/__assert.c
+++ b/assert/__assert.c
@@ -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/assert/assert-perr.c b/assert/assert-perr.c
index d113c686fc..4501380747 100644
--- a/assert/assert-perr.c
+++ b/assert/assert-perr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1994-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1994-2022 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/assert/assert.c b/assert/assert.c
index 8a277dce00..133a183bc3 100644
--- a/assert/assert.c
+++ b/assert/assert.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/assert/assert.h b/assert/assert.h
index 2894908559..67f1cce5e9 100644
--- a/assert/assert.h
+++ b/assert/assert.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/assert/tst-assert-c++.cc b/assert/tst-assert-c++.cc
index f99a630b33..d1f14eb2ec 100644
--- a/assert/tst-assert-c++.cc
+++ b/assert/tst-assert-c++.cc
@@ -1,5 +1,5 @@
 /* Tests for interactions between C++ and assert.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/assert/tst-assert-g++.cc b/assert/tst-assert-g++.cc
index 7db351245e..b29ce74f15 100644
--- a/assert/tst-assert-g++.cc
+++ b/assert/tst-assert-g++.cc
@@ -1,5 +1,5 @@
 /* Tests for interactions between C++ and assert.  GNU C++11 version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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