perfschema.threads_mysql fails in buildbot (type=BACKGROUND mismatch)

perfschema.threads_mysql                 w2 [ fail ]

        Test ended at 2016-06-02 15:00:59

CURRENT_TEST: perfschema.threads_mysql

--- /usr/local/mariadb-10.1.15-linux-x86_64/mysql-test/suite/perfschema/r/threads_mysql.result	2016-06-02 10:52:08.000000000 +0200

+++ /usr/local/mariadb-10.1.15-linux-x86_64/mysql-test/suite/perfschema/r/threads_mysql.reject	2016-06-02 15:00:59.000000000 +0200

@@ -21,6 +21,16 @@

 type	FOREGROUND

 processlist_user	root

 processlist_host	localhost

+processlist_db	mtr

+processlist_command	Sleep

+processlist_info	NULL

+unified_parent_thread_id	unified parent_thread_id

+role	NULL

+instrumented	YES

+name	thread/sql/one_connection

+type	FOREGROUND

+processlist_user	root

+processlist_host	localhost

 processlist_db	test

 processlist_command	Query

 processlist_info	SELECT name, type, processlist_user, processlist_host, processlist_db,