Add missing header.

This commit was SVN r14485.

opal/util/sys_limits.c

@@ -9,6 +9,7 @@
  *                         University of Stuttgart.  All rights reserved.
  * Copyright (c) 2004-2005 The Regents of the University of California.
  *                         All rights reserved.
+ * Copyright (c) 2007      Cisco, Inc.  All rights reserved.
  * $COPYRIGHT$
  * 
  * Additional copyrights may follow
@@ -35,6 +36,7 @@
 #include "opal/mca/base/mca_base_param.h"
 
 #include "opal/util/sys_limits.h"
+#include "opal/util/output.h"
 
 
 /*