FYI copyright updates for 2012

[Jim Meyering]

First I updated tests/sample-test with a simple s/2011/2012/

    From 75a21e62486521ba3d8ef518dc4740dc1adeb7f4 Mon Sep 17 00:00:00 2001
    From: Jim Meyering <address@hidden>
    Date: Sun, 1 Jan 2012 09:52:49 +0100
    Subject: [PATCH 1/2] tests: change copyright year from 2011 to 2012 in
     sample-test

    This file is special.  We don't want to use a range,
    but merely the current year number.
    * tests/sample-test: s/2011/2012/
    ---
     tests/sample-test |    2 +-
     1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/tests/sample-test b/tests/sample-test
    index 35dea0e..7d1f6e9 100644
    --- a/tests/sample-test
    +++ b/tests/sample-test
    @@ -1,7 +1,7 @@
     #!/bin/sh
     # FIXME

    -# Copyright (C) 2011 Free Software Foundation, Inc.
    +# Copyright (C) 2012 Free Software Foundation, Inc.

     # This program is free software: you can redistribute it and/or modify
     # it under the terms of the GNU General Public License as published by
    --
    1.7.8.1.391.g2c2ad

Then I updated copyright dates in all other files with the usual
"make update-copyright".