update tests to pass

mysql-test/extra/binlog_tests/database.test

@@ -84,7 +84,7 @@ CREATE TABLE t3 (a INT, KEY (a), FOREIGN KEY(a) REFERENCES db1.t2(b))
   engine=innodb;
 RESET MASTER;
 
---error ER_ROW_IS_REFERENCED
+--error ER_ROW_IS_REFERENCED_2
 DROP DATABASE db1;                      # Fails because of the fk
 SHOW TABLES FROM db1;                   # t1 was dropped, t2 remains
 --source include/show_binlog_events.inc # Check that the binlog drops t1

mysql-test/suite/rpl/t/rpl_drop_db_fail.test

@@ -25,7 +25,7 @@ use db2;
 CREATE TABLE table_child(id INT PRIMARY KEY, info VARCHAR(20), father_id INT) ENGINE=INNODB;
 ALTER TABLE table_child ADD CONSTRAINT aaa FOREIGN KEY (father_id) REFERENCES db1.table_father(id);
 
---error ER_ROW_IS_REFERENCED
+--error ER_ROW_IS_REFERENCED_2
 DROP DATABASE db1;
 DROP DATABASE db2;
 --sync_slave_with_master