Gar - forgot to commit a few more cleanups

Refs trac:3696

This commit was SVN r29168.

The following Trac tickets were found above:
  Ticket 3696 --> https://svn.open-mpi.org/trac/ompi/ticket/3696

ompi/mca/pubsub/orte/pubsub_orte.c

@@ -382,12 +382,14 @@ static char* lookup ( char *service_name, ompi_info_t *info )
         /* pack the lookup command */
         if (OPAL_SUCCESS != (ret = opal_dss.pack(buf, &cmd, 1, ORTE_DATA_SERVER_CMD))) {
             ORTE_ERROR_LOG(ret);
+            OBJ_RELEASE(buf);
             goto CLEANUP;
         }
         
         /* pack the service name */
         if (OPAL_SUCCESS != (ret = opal_dss.pack(buf, &service_name, 1, OPAL_STRING))) {
             ORTE_ERROR_LOG(ret);
+            OBJ_RELEASE(buf);
             goto CLEANUP;
         }
         
@@ -396,6 +398,7 @@ static char* lookup ( char *service_name, ompi_info_t *info )
                                                ORTE_RML_TAG_DATA_SERVER,
                                                orte_rml_send_callback, NULL))) {
             ORTE_ERROR_LOG(ret);
+            OBJ_RELEASE(buf);
             goto CLEANUP;
         }