BUG#20454797 WAIT_FOR_SLAVE_PARAM.INC IS NOT CHECKING FOR ERROR WHILE WAITING THE PARAMETER

Post-push fix to stabilize rpl_slave_load_tmpdir_not_exist test.

Author: mcouceiro

mysql-test/suite/rpl/r/rpl_slave_load_tmpdir_not_exist.result

@@ -6,6 +6,7 @@ Note	####	Storing MySQL user name or password information in the master info rep
 START SLAVE;
 call mtr.add_suppression("Slave SQL.*Unable to use slave.s temporary directory.* Error_code: 12");
 include/wait_for_slave_sql_error.inc [errno=12]
+include/wait_for_slave_io_to_start.inc
 include/stop_slave_io.inc
 RESET SLAVE;
 include/rpl_end.inc

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

@@ -14,7 +14,7 @@ START SLAVE;
 call mtr.add_suppression("Slave SQL.*Unable to use slave.s temporary directory.* Error_code: 12");
 --let $slave_sql_errno= 12
 source include/wait_for_slave_sql_error.inc;
-
+--source include/wait_for_slave_io_to_start.inc
 --source include/stop_slave_io.inc
 RESET SLAVE;