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, 13 insertions, 13 deletions

diff --git a/shadow/Makefile b/shadow/Makefile
index 641e015..b9faa3a 100644
--- a/shadow/Makefile
+++ b/shadow/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/shadow/fgetspent.c b/shadow/fgetspent.c
index acfc85c..5f75e31 100644
--- a/shadow/fgetspent.c
+++ b/shadow/fgetspent.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/shadow/fgetspent_r.c b/shadow/fgetspent_r.c
index 6702ea0..d8c067a 100644
--- a/shadow/fgetspent_r.c
+++ b/shadow/fgetspent_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/shadow/getspent.c b/shadow/getspent.c
index eb92c7b..5ff3ef4 100644
--- a/shadow/getspent.c
+++ b/shadow/getspent.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/shadow/getspent_r.c b/shadow/getspent_r.c
index 94743f4..9079638 100644
--- a/shadow/getspent_r.c
+++ b/shadow/getspent_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/shadow/getspnam.c b/shadow/getspnam.c
index 495de6c..5887367 100644
--- a/shadow/getspnam.c
+++ b/shadow/getspnam.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/shadow/getspnam_r.c b/shadow/getspnam_r.c
index f16174a..4d201bd 100644
--- a/shadow/getspnam_r.c
+++ b/shadow/getspnam_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/shadow/lckpwdf.c b/shadow/lckpwdf.c
index 3d42f2b..2df8f4e 100644
--- a/shadow/lckpwdf.c
+++ b/shadow/lckpwdf.c
@@ -1,5 +1,5 @@
 /* Handle locking of password file.
-   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/shadow/putspent.c b/shadow/putspent.c
index c2aad70..cbbb840 100644
--- a/shadow/putspent.c
+++ b/shadow/putspent.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/shadow/sgetspent.c b/shadow/sgetspent.c
index 4762381..06388b4 100644
--- a/shadow/sgetspent.c
+++ b/shadow/sgetspent.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/shadow/sgetspent_r.c b/shadow/sgetspent_r.c
index 5815d29..fb29c18 100644
--- a/shadow/sgetspent_r.c
+++ b/shadow/sgetspent_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/shadow/shadow.h b/shadow/shadow.h
index bd5ef21..b29bcc4 100644
--- a/shadow/shadow.h
+++ b/shadow/shadow.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/shadow/tst-putspent.c b/shadow/tst-putspent.c
index 287641d..6080923 100644
--- a/shadow/tst-putspent.c
+++ b/shadow/tst-putspent.c
@@ -1,5 +1,5 @@
 /* Test for processing of invalid shadow 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