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

18 files changed, 18 insertions, 18 deletions

diff --git a/sysdeps/gnu/Makefile b/sysdeps/gnu/Makefile
index 36c67fb..81952e1 100644
--- a/sysdeps/gnu/Makefile
+++ b/sysdeps/gnu/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/sysdeps/gnu/bits/ipc.h b/sysdeps/gnu/bits/ipc.h
index bd86016..952f0bc 100644
--- a/sysdeps/gnu/bits/ipc.h
+++ b/sysdeps/gnu/bits/ipc.h
@@ -1,4 +1,4 @@
-/* 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/sysdeps/gnu/bits/msq.h b/sysdeps/gnu/bits/msq.h
index b943e69..1dcbceb 100644
--- a/sysdeps/gnu/bits/msq.h
+++ b/sysdeps/gnu/bits/msq.h
@@ -1,4 +1,4 @@
-/* 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/sysdeps/gnu/bits/sem.h b/sysdeps/gnu/bits/sem.h
index c2300b7..cb6ff08 100644
--- a/sysdeps/gnu/bits/sem.h
+++ b/sysdeps/gnu/bits/sem.h
@@ -1,4 +1,4 @@
-/* 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/sysdeps/gnu/bits/shm.h b/sysdeps/gnu/bits/shm.h
index 77b1542..0797698 100644
--- a/sysdeps/gnu/bits/shm.h
+++ b/sysdeps/gnu/bits/shm.h
@@ -1,4 +1,4 @@
-/* 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/sysdeps/gnu/bits/utmpx.h b/sysdeps/gnu/bits/utmpx.h
index c859c5b..3462463 100644
--- a/sysdeps/gnu/bits/utmpx.h
+++ b/sysdeps/gnu/bits/utmpx.h
@@ -1,5 +1,5 @@
 /* Structures and definitions for the user accounting database.  GNU version.
-   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/sysdeps/gnu/getutmp.c b/sysdeps/gnu/getutmp.c
index 4ce9d65..addbf65 100644
--- a/sysdeps/gnu/getutmp.c
+++ b/sysdeps/gnu/getutmp.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/sysdeps/gnu/glob-lstat-compat.c b/sysdeps/gnu/glob-lstat-compat.c
index caa4859..eb60b48 100644
--- a/sysdeps/gnu/glob-lstat-compat.c
+++ b/sysdeps/gnu/glob-lstat-compat.c
@@ -1,6 +1,6 @@
 /* Compat glob which does not use gl_lstat for GLOB_ALTDIRFUNC.
    GNU 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
diff --git a/sysdeps/gnu/glob64-lstat-compat.c b/sysdeps/gnu/glob64-lstat-compat.c
index ade4cca..9cd08f4 100644
--- a/sysdeps/gnu/glob64-lstat-compat.c
+++ b/sysdeps/gnu/glob64-lstat-compat.c
@@ -1,6 +1,6 @@
 /* Compat glob which does not use gl_lstat for GLOB_ALTDIRFUNC.
    GNU 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
diff --git a/sysdeps/gnu/ifaddrs.c b/sysdeps/gnu/ifaddrs.c
index e744225..02bfe0e 100644
--- a/sysdeps/gnu/ifaddrs.c
+++ b/sysdeps/gnu/ifaddrs.c
@@ -1,5 +1,5 @@
 /* getifaddrs -- get names and addresses of all network interfaces
-   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/sysdeps/gnu/ldsodefs.h b/sysdeps/gnu/ldsodefs.h
index ad07a6a..eb9950f 100644
--- a/sysdeps/gnu/ldsodefs.h
+++ b/sysdeps/gnu/ldsodefs.h
@@ -1,5 +1,5 @@
 /* Run-time dynamic linker data structures for loaded ELF shared objects.  GNU.
-   Copyright (C) 2001-2021 Free Software Foundation, Inc.
+   Copyright (C) 2001-2022 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/sysdeps/gnu/net/if.h b/sysdeps/gnu/net/if.h
index 79d3c88..251418f 100644
--- a/sysdeps/gnu/net/if.h
+++ b/sysdeps/gnu/net/if.h
@@ -1,5 +1,5 @@
 /* net/if.h -- declarations for inquiring about network interfaces
-   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/sysdeps/gnu/netinet/ip_icmp.h b/sysdeps/gnu/netinet/ip_icmp.h
index ec71372..869d422 100644
--- a/sysdeps/gnu/netinet/ip_icmp.h
+++ b/sysdeps/gnu/netinet/ip_icmp.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/sysdeps/gnu/netinet/udp.h b/sysdeps/gnu/netinet/udp.h
index 9062fc3..b79e2cd 100644
--- a/sysdeps/gnu/netinet/udp.h
+++ b/sysdeps/gnu/netinet/udp.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/sysdeps/gnu/sys/mtio.h b/sysdeps/gnu/sys/mtio.h
index 6a56479..57f7830 100644
--- a/sysdeps/gnu/sys/mtio.h
+++ b/sysdeps/gnu/sys/mtio.h
@@ -1,5 +1,5 @@
 /* Structures and definitions for magnetic tape I/O control commands.
-   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/sysdeps/gnu/updwtmp.c b/sysdeps/gnu/updwtmp.c
index c49011c..f9f5f76 100644
--- a/sysdeps/gnu/updwtmp.c
+++ b/sysdeps/gnu/updwtmp.c
@@ -1,4 +1,4 @@
-/* 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/sysdeps/gnu/utmp_file.c b/sysdeps/gnu/utmp_file.c
index a3c42b5..6258445 100644
--- a/sysdeps/gnu/utmp_file.c
+++ b/sysdeps/gnu/utmp_file.c
@@ -1,4 +1,4 @@
-/* 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/sysdeps/gnu/utmpx.h b/sysdeps/gnu/utmpx.h
index b9cab83..1c6492d 100644
--- a/sysdeps/gnu/utmpx.h
+++ b/sysdeps/gnu/utmpx.h
@@ -1,4 +1,4 @@
-/* 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