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

13 files changed, 14 insertions, 14 deletions

diff --git a/csu/Makefile b/csu/Makefile
index b52a98f..2e8a28e 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -1,5 +1,5 @@
 # Makefile for csu code for GNU C library.
-# Copyright (C) 1995-2021 Free Software Foundation, Inc.
+# Copyright (C) 1995-2022 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/csu/abi-note.c b/csu/abi-note.c
index 909db3a..a03c585 100644
--- a/csu/abi-note.c
+++ b/csu/abi-note.c
@@ -1,5 +1,5 @@
 /* Special .init and .fini section support.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1997-2022 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/csu/check_fds.c b/csu/check_fds.c
index 6dc6733..4016a4a 100644
--- a/csu/check_fds.c
+++ b/csu/check_fds.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/csu/dso_handle.c b/csu/dso_handle.c
index 6b352a8..13a2914 100644
--- a/csu/dso_handle.c
+++ b/csu/dso_handle.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2022 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/csu/errno-loc.c b/csu/errno-loc.c
index 437712a..3ba297e 100644
--- a/csu/errno-loc.c
+++ b/csu/errno-loc.c
@@ -1,6 +1,6 @@
 /* MT support function to get address of `errno' variable, non-threaded
    version.
-   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/csu/errno.c b/csu/errno.c
index 9466735..0787e1d 100644
--- a/csu/errno.c
+++ b/csu/errno.c
@@ -1,5 +1,5 @@
 /* Definition of `errno' variable.  Canonical version.
-   Copyright (C) 2002-2021 Free Software Foundation, Inc.
+   Copyright (C) 2002-2022 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/csu/gmon-start.c b/csu/gmon-start.c
index 260c761..a54cde7 100644
--- a/csu/gmon-start.c
+++ b/csu/gmon-start.c
@@ -1,5 +1,5 @@
 /* Code to enable profiling at program startup.
-   Copyright (C) 1995-2021 Free Software Foundation, Inc.
+   Copyright (C) 1995-2022 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/csu/init-first.c b/csu/init-first.c
index 316fed2..96f5d95 100644
--- a/csu/init-first.c
+++ b/csu/init-first.c
@@ -1,5 +1,5 @@
 /* Initialization code run first thing by the ELF startup code.  Common version
-   Copyright (C) 1995-2021 Free Software Foundation, Inc.
+   Copyright (C) 1995-2022 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/csu/init.c b/csu/init.c
index 0aefc7f..f0b55a0 100644
--- a/csu/init.c
+++ b/csu/init.c
@@ -1,5 +1,5 @@
 /* Special startup support.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1997-2022 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/csu/libc-start.c b/csu/libc-start.c
index d01e57e..e91f996 100644
--- a/csu/libc-start.c
+++ b/csu/libc-start.c
@@ -1,5 +1,5 @@
 /* Perform initialization and invoke main.
-   Copyright (C) 1998-2021 Free Software Foundation, Inc.
+   Copyright (C) 1998-2022 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/csu/libc-tls.c b/csu/libc-tls.c
index d83e69f..bef92a7 100644
--- a/csu/libc-tls.c
+++ b/csu/libc-tls.c
@@ -1,5 +1,5 @@
 /* Initialization code for TLS in statically linked application.
-   Copyright (C) 2002-2021 Free Software Foundation, Inc.
+   Copyright (C) 2002-2022 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/csu/static-reloc.c b/csu/static-reloc.c
index 972c524..38d0449 100644
--- a/csu/static-reloc.c
+++ b/csu/static-reloc.c
@@ -1,5 +1,5 @@
 /* Special startup support for non-PIE static executables.
-   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/csu/version.c b/csu/version.c
index 5f36c4f..0de4df5 100644
--- a/csu/version.c
+++ b/csu/version.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2022 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
@@ -25,7 +25,7 @@ static const char __libc_version[] = VERSION;
 
 static const char banner[] =
 "GNU C Library "PKGVERSION RELEASE" release version "VERSION".\n\
-Copyright (C) 2021 Free Software Foundation, Inc.\n\
+Copyright (C) 2022 Free Software Foundation, Inc.\n\
 This is free software; see the source for copying conditions.\n\
 There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
 PARTICULAR PURPOSE.\n\