orte: add missing break statement

This seems like an obvious typo: insert a missing "break" statement so
that we don't fall through to the next case.

Fixes CIDs 1362756 and 1362764.

Signed-off-by: Jeff Squyres <jsquyres@cisco.com>

orte/util/error_strings.c

@@ -9,7 +9,7 @@
  *                         University of Stuttgart.  All rights reserved.
  * Copyright (c) 2004-2005 The Regents of the University of California.
  *                         All rights reserved.
- * Copyright (c) 2010-2011 Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2010-2016 Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2011-2013 Los Alamos National Security, LLC.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc.  All rights reserved.
@@ -236,6 +236,7 @@ int orte_err2str(int errnum, const char **errmsg)
         break;
     case ORTE_ERR_DEBUGGER_RELEASE:
         retval = "Debugger release";
+        break;
     default:
         if (orte_report_silent_errors) {
             retval = "Unknown error";