orte_rtc_base_select: skip a RTC module if it has a zero priority

This commit was SVN r31926.

orte/mca/rtc/base/rtc_base_select.c

@@ -1,5 +1,7 @@
 /*
  * Copyright (c) 2014      Intel, Inc.  All rights reserved.
+ * Copyright (c) 2014      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  * 
  * Additional copyrights may follow
@@ -67,6 +69,9 @@ int orte_rtc_base_select(void)
                                 component->mca_component_name );
             continue;
         }
+        if (0 == priority) {
+            continue;
+        }
         nmodule = (orte_rtc_base_module_t*) module;
 
         /* give the module a chance to init */