Updated modeline and copyright statement in DRD source files.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11642 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/drd/drd_mutex.h b/drd/drd_mutex.h
index c619ff5..d2c05d3 100644
--- a/drd/drd_mutex.h
+++ b/drd/drd_mutex.h
@@ -1,8 +1,8 @@
-/* -*- mode: C; c-basic-offset: 3; -*- */
+/* -*- mode: C; c-basic-offset: 3; indent-tabs-mode: nil; -*- */
 /*
   This file is part of drd, a thread error detector.
 
-  Copyright (C) 2006-2010 Bart Van Assche <bvanassche@acm.org>.
+  Copyright (C) 2006-2011 Bart Van Assche <bvanassche@acm.org>.
 
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as