Fixed some mtr results found in Jenins after MDEV-333582 push

MDEV-33582 Add more warnings to be able to better diagnose network issues

- Disabled "Semisync ack receiver got hangup" warning
  - One could get this warning from semisync if running
    mtr --mysqld=log-warnings=3 rpl.rpl_semi_sync_shutdown_await_ack
- Fixed result file for engines/funcs/rpl_get_lock.test

mysql-test/mariadb-test-run.pl

@@ -4492,6 +4492,7 @@ sub extract_warning_lines ($$) {
      qr/Could not write packet:.* errno: 32 /,
      qr/Could not write packet:.* errno: 104 /,
      qr/Semisync ack receiver got error 1158/,
+     qr/Semisync ack receiver got hangup/,
      qr/Connection was killed/,
      qr/Failed on request_dump/,
      qr/Slave: Can't drop database.* database doesn't exist/,

mysql-test/suite/engines/funcs/r/rpl_get_lock.result

 include/master-slave.inc
 [connection master]
-CALL mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
+SET GLOBAL LOG_WARNINGS=4;
 create table t1(n int);
 insert into t1 values(get_lock("lock",2));
 disconnect master;
@@ -35,4 +35,5 @@ NULL
 connection master1;
 drop table t1;
 connection slave;
+connection default;
 include/rpl_end.inc