Bug #38540 rpl_server_id2 uses show slave status unnecessarily

mysql-test/suite/rpl/t/disabled.def:
   disable test

mysql-test/suite/rpl/t/disabled.def

@@ -14,3 +14,4 @@ rpl_redirect               : Failure is sporadic and and the test is superfluous
 rpl_innodb_bug28430        : Failure on Solaris Bug #36793
 rpl_temporary              : BUG#38269 2008-07-21 Sven valgrind error in pushbuild
 rpl_flushlog_loop          : BUG#37733 2008-07-23 Sven disabled in 5.1-bugteam. the bug has been fixed in 5.1-rpl: please re-enable when that gets pushed to main
+rpl_server_id2             : Bug#38540 rpl_server_id2 uses show slave status unnecessarily