Update licensing info

This take the prize as most useless commit to the repo, yet.

vcsh

 #!/bin/sh
 
 # This program is licensed under the GNU GPL version 2 or later.
-# (c) Richard "RichiH" Hartmann <richih.mailinglist@gmail.com>, 2011-2012
+# (c) Richard "RichiH" Hartmann <richih.mailinglist@gmail.com>, 2011-2013
 # For details, see LICENSE. To submit patches, you have to agree to
 # license your code under the GNU GPL version 2 or later.
 
@@ -9,6 +9,7 @@
 # explain the choice of GPLv2+ over GPLv3+.
 # The author prefers GPLv3+ over GPLv2+ but feels it's better to maintain
 # full compability with git. In case git ever changes its licensing terms,
+# which is admittedly extremely unlikely to the point of being impossible,
 # this software will most likely follow suit.
 
 SELF=$(basename $0)