MDEV-8193: UNTIL clause in START SLAVE is sporadically disobeyed by parallel replication

Adjust the test case to try and avoid some sporadic failures on loaded test hosts. The wait for SQL thread to stop may complete before worker threads have completed.

Author: knielsen

mysql-test/suite/rpl/t/rpl_mdev8193.test

@@ -38,10 +38,10 @@ eval start slave until master_log_file='$master_file', master_log_pos=$master_po
 
 --source include/wait_show_condition.inc
 
-if (`select COUNT(*) <> 11 from t1`) 
+if (`select COUNT(*) > 11 from t1`) 
 {
-SELECT * FROM t1;
 query_vertical show slave status;
+SELECT * FROM t1;
 die "Wrong number of rows in the table";
 }