Suppress additional debug info printed in _DEBUG build

modified:
  mysql-test/suite/connect/t/mysql.test

mysql-test/suite/connect/t/mysql.test

@@ -12,7 +12,8 @@ SELECT * FROM t1;
 --echo #
 
 # Bad user name
---replace_result $PORT PORT
+# Suppress "mysql_real_connect failed:" (printed in _DEBUG build)
+--replace_result $PORT PORT "mysql_real_connect failed: " ""
 --error ER_UNKNOWN_ERROR
 --eval CREATE TABLE t2 ENGINE=CONNECT TABLE_TYPE=MYSQL TABNAME='t1' OPTION_LIST='host=localhost,user=root1,port=$PORT'