opal_setup_cc.m4: whitespace cleanup

No code changes.

config/opal_setup_cc.m4

@@ -11,7 +11,7 @@ dnl                         University of Stuttgart.  All rights reserved.
 dnl Copyright (c) 2004-2006 The Regents of the University of California.
 dnl                         All rights reserved.
 dnl Copyright (c) 2007-2009 Sun Microsystems, Inc.  All rights reserved.
-dnl Copyright (c) 2008-2015 Cisco Systems, Inc.  All rights reserved.
+dnl Copyright (c) 2008-2013 Cisco Systems, Inc.  All rights reserved.
 dnl Copyright (c) 2012      Los Alamos National Security, LLC. All rights
 dnl                         reserved.
 dnl Copyright (c) 2015      Research Organization for Information Science