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 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master

22 files changed, 22 insertions, 22 deletions

diff --git a/sysvipc/Makefile b/sysvipc/Makefile
index 10c9d94..a534791 100644
--- a/sysvipc/Makefile
+++ b/sysvipc/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1995-2020 Free Software Foundation, Inc.
+# Copyright (C) 1995-2021 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/sysvipc/ftok.c b/sysvipc/ftok.c
index a65dbd5..2e39c74 100644
--- a/sysvipc/ftok.c
+++ b/sysvipc/ftok.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/msgctl.c b/sysvipc/msgctl.c
index 2b8c307..5e4e2c7 100644
--- a/sysvipc/msgctl.c
+++ b/sysvipc/msgctl.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/msgget.c b/sysvipc/msgget.c
index 9e6bf9f..6a5e77e 100644
--- a/sysvipc/msgget.c
+++ b/sysvipc/msgget.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/msgrcv.c b/sysvipc/msgrcv.c
index a5aea66..35e4ac6 100644
--- a/sysvipc/msgrcv.c
+++ b/sysvipc/msgrcv.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/msgsnd.c b/sysvipc/msgsnd.c
index 13d267c..829d7ce 100644
--- a/sysvipc/msgsnd.c
+++ b/sysvipc/msgsnd.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
 
diff --git a/sysvipc/semctl.c b/sysvipc/semctl.c
index 61e5e08..c9b1232 100644
--- a/sysvipc/semctl.c
+++ b/sysvipc/semctl.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/semget.c b/sysvipc/semget.c
index 69ccbd7..095b4b2 100644
--- a/sysvipc/semget.c
+++ b/sysvipc/semget.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/semop.c b/sysvipc/semop.c
index 02dc126..6ff5b0e 100644
--- a/sysvipc/semop.c
+++ b/sysvipc/semop.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
 
diff --git a/sysvipc/semtimedop.c b/sysvipc/semtimedop.c
index 2662a62..58c4b84 100644
--- a/sysvipc/semtimedop.c
+++ b/sysvipc/semtimedop.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
 
diff --git a/sysvipc/shmat.c b/sysvipc/shmat.c
index 95cecee..8cb484e 100644
--- a/sysvipc/shmat.c
+++ b/sysvipc/shmat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/shmctl.c b/sysvipc/shmctl.c
index d8c0525..b0457cd 100644
--- a/sysvipc/shmctl.c
+++ b/sysvipc/shmctl.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/shmdt.c b/sysvipc/shmdt.c
index 9e75621..c46a271 100644
--- a/sysvipc/shmdt.c
+++ b/sysvipc/shmdt.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
diff --git a/sysvipc/shmget.c b/sysvipc/shmget.c
index 2a72ab2..73e968a 100644
--- a/sysvipc/shmget.c
+++ b/sysvipc/shmget.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
 
diff --git a/sysvipc/sys/ipc.h b/sysvipc/sys/ipc.h
index 0c7f356..1d12174 100644
--- a/sysvipc/sys/ipc.h
+++ b/sysvipc/sys/ipc.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 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/sysvipc/sys/msg.h b/sysvipc/sys/msg.h
index c70cfa5..9ddedf5 100644
--- a/sysvipc/sys/msg.h
+++ b/sysvipc/sys/msg.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 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/sysvipc/sys/sem.h b/sysvipc/sys/sem.h
index 4ede2dd..03b65df 100644
--- a/sysvipc/sys/sem.h
+++ b/sysvipc/sys/sem.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 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/sysvipc/sys/shm.h b/sysvipc/sys/shm.h
index 6c58742..7506ba6 100644
--- a/sysvipc/sys/shm.h
+++ b/sysvipc/sys/shm.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2021 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/sysvipc/test-sysvipc.h b/sysvipc/test-sysvipc.h
index d1c8349..ed0057b 100644
--- a/sysvipc/test-sysvipc.h
+++ b/sysvipc/test-sysvipc.h
@@ -1,5 +1,5 @@
 /* Basic definition for Sysv IPC test functions.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/sysvipc/test-sysvmsg.c b/sysvipc/test-sysvmsg.c
index ada2881..541d80e 100644
--- a/sysvipc/test-sysvmsg.c
+++ b/sysvipc/test-sysvmsg.c
@@ -1,5 +1,5 @@
 /* Basic tests for SYSV message queue functions.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 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/sysvipc/test-sysvsem.c b/sysvipc/test-sysvsem.c
index 61837d8..0924182 100644
--- a/sysvipc/test-sysvsem.c
+++ b/sysvipc/test-sysvsem.c
@@ -1,5 +1,5 @@
 /* Basic tests for SYSV semaphore functions.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 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/sysvipc/test-sysvshm.c b/sysvipc/test-sysvshm.c
index a1b8b48..09d7d17 100644
--- a/sysvipc/test-sysvshm.c
+++ b/sysvipc/test-sysvshm.c
@@ -1,5 +1,5 @@
 /* Basic tests for SYSV shared memory functions.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 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