Adds missing line

src/test/regress/expected/multi_test_helpers.out

@@ -555,6 +555,7 @@ BEGIN
     JOIN pg_dist_node USING (nodeid)
     ORDER BY node_type;
 END;
+$func$ LANGUAGE plpgsql;
 -- For all nodes, returns database properties of given database, except
 -- oid, datfrozenxid and datminmxid.
 --