Fix a small leak in orte/util/name_fns.c

cmr:v1.7

This commit was SVN r27576.

orte/util/name_fns.c

@@ -78,6 +78,7 @@ buffer_cleanup(void *value)
         for (i=0; i < ORTE_PRINT_NAME_ARG_NUM_BUFS; i++) {
             free(ptr->buffers[i]);
         }
+        free (ptr);
     }
 }