Fix regression tests after the patch with CREATEROLE restrictions

Author: kelvich

src/test/regress/expected/privileges.out

@@ -1559,7 +1559,8 @@ REFRESH MATERIALIZED VIEW sro_mv;
 ERROR:  cannot fire deferred trigger within security-restricted operation
 CONTEXT:  SQL function "mv_action" statement 1
 BEGIN; SET CONSTRAINTS ALL IMMEDIATE; REFRESH MATERIALIZED VIEW sro_mv; COMMIT;
-ERROR:  must have admin option on role "regress_priv_group2"
+ERROR:  permission denied to grant role "regress_priv_group2"
+DETAIL:  Only roles with the ADMIN option on role "regress_priv_group2" may grant this role.
 CONTEXT:  SQL function "unwanted_grant" statement 1
 SQL statement "SELECT unwanted_grant()"
 PL/pgSQL function sro_trojan() line 1 at PERFORM
@@ -1589,10 +1590,12 @@ CREATE FUNCTION dogrant_ok() RETURNS void LANGUAGE sql SECURITY DEFINER AS
 GRANT regress_priv_group2 TO regress_priv_user5; -- ok: had ADMIN OPTION
 SET ROLE regress_priv_group2;
 GRANT regress_priv_group2 TO regress_priv_user5; -- fails: SET ROLE suspended privilege
-ERROR:  must have admin option on role "regress_priv_group2"
+ERROR:  permission denied to grant role "regress_priv_group2"
+DETAIL:  Only roles with the ADMIN option on role "regress_priv_group2" may grant this role.
 SET SESSION AUTHORIZATION regress_priv_user1;
 GRANT regress_priv_group2 TO regress_priv_user5; -- fails: no ADMIN OPTION
-ERROR:  must have admin option on role "regress_priv_group2"
+ERROR:  permission denied to grant role "regress_priv_group2"
+DETAIL:  Only roles with the ADMIN option on role "regress_priv_group2" may grant this role.
 SELECT dogrant_ok();			-- ok: SECURITY DEFINER conveys ADMIN
 NOTICE:  role "regress_priv_user5" is already a member of role "regress_priv_group2"
  dogrant_ok 
@@ -1602,14 +1605,16 @@ NOTICE:  role "regress_priv_user5" is already a member of role "regress_priv_gro
 
 SET ROLE regress_priv_group2;
 GRANT regress_priv_group2 TO regress_priv_user5; -- fails: SET ROLE did not help
-ERROR:  must have admin option on role "regress_priv_group2"
+ERROR:  permission denied to grant role "regress_priv_group2"
+DETAIL:  Only roles with the ADMIN option on role "regress_priv_group2" may grant this role.
 SET SESSION AUTHORIZATION regress_priv_group2;
 GRANT regress_priv_group2 TO regress_priv_user5; -- ok: a role can self-admin
 NOTICE:  role "regress_priv_user5" is already a member of role "regress_priv_group2"
 CREATE FUNCTION dogrant_fails() RETURNS void LANGUAGE sql SECURITY DEFINER AS
 	'GRANT regress_priv_group2 TO regress_priv_user5';
 SELECT dogrant_fails();			-- fails: no self-admin in SECURITY DEFINER
-ERROR:  must have admin option on role "regress_priv_group2"
+ERROR:  permission denied to grant role "regress_priv_group2"
+DETAIL:  Only roles with the ADMIN option on role "regress_priv_group2" may grant this role.
 CONTEXT:  SQL function "dogrant_fails" statement 1
 DROP FUNCTION dogrant_fails();
 SET SESSION AUTHORIZATION regress_priv_user4;