orgcard.tex: Fix copyright year.

doc/orgcard.tex

@@ -17,7 +17,7 @@
 \pdflayout=(0l)
 
 % Nothing else needs to be changed below this line.
-% Copyright (C) 1987, 1993, 1996-1997, 2001-2011
+% Copyright (C) 1987, 1993, 1996-1997, 2001-2012
 %   Free Software Foundation, Inc.
 
 % This file is part of GNU Emacs.