Update copyright dates (20XY-2012 ==> 20XY-2013)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13658 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/include/pub_tool_vki.h b/include/pub_tool_vki.h
index 53a9ee5..2966ce3 100644
--- a/include/pub_tool_vki.h
+++ b/include/pub_tool_vki.h
@@ -8,11 +8,11 @@
    This file is part of Valgrind, a dynamic binary instrumentation
    framework.
 
-   Copyright (C) 2000-2012 Julian Seward
+   Copyright (C) 2000-2013 Julian Seward
       jseward@acm.org
-   Copyright (C) 2005-2012 Nicholas Nethercote
+   Copyright (C) 2005-2013 Nicholas Nethercote
       njn@valgrind.org
-   Copyright (C) 2006-2012 OpenWorks LLP
+   Copyright (C) 2006-2013 OpenWorks LLP
       info@open-works.co.uk
 
    This program is free software; you can redistribute it and/or