Fix missing --replace_result on $SLAVE_MYPORT in federated.

mysql-test/t/federated.test:
  Fix missing --replace_result on $SLAVE_MYPORT to work with MTR_BUILD_THREAD.
mysql-test/r/federated.result:
  Fix missing --replace_result on $SLAVE_MYPORT to work with MTR_BUILD_THREAD.

mysql-test/r/federated.result

@@ -1530,7 +1530,7 @@ CREATE TABLE federated.t1 (
 PRIMARY KEY  (`id`)
 )
 ENGINE="FEDERATED" DEFAULT CHARSET=latin1
-CONNECTION='mysql://root@127.0.0.1:9308/federated/t1';
+CONNECTION='mysql://root@127.0.0.1:SLAVE_PORT/federated/t1';
 INSERT INTO federated.t1 VALUES ();
 SELECT LAST_INSERT_ID();
 LAST_INSERT_ID()

mysql-test/t/federated.test

@@ -1235,6 +1235,7 @@ CREATE TABLE federated.t1 (
 
 connection master;
 DROP TABLE IF EXISTS federated.t1;
+--replace_result $SLAVE_MYPORT SLAVE_PORT
 eval CREATE TABLE federated.t1 (
     `id` int(20) NOT NULL auto_increment,
     PRIMARY KEY  (`id`)