innodb.percona_changed_page_bmp does not cleanup $MYSQLTEST_VARDIR/tmpdatadir

[Laurynas Biveinis]

percona_changed_page_bmp.test:

...
#
# Test that bitmap files are created correctly in innodb_data_home_dir without a trailing
# path separator (bug 1181887)
#
...
--mkdir $MYSQLTEST_VARDIR/tmpdatadir
...

This directory is never removed and causes a failure with --repeat=2:

innodb.percona_changed_page_bmp [ fail ]
        Test ended at 2016-08-01 09:46:00

CURRENT_TEST: innodb.percona_changed_page_bmp
mysqltest: At line 252: command "mkdir" failed with error 1. my_errno=17

[Laurynas Biveinis (laurynas-biveinis)]

     https://github.com/percona/percona-server/pull/743
     https://github.com/percona/percona-server/pull/744
     https://github.com/percona/percona-server/pull/745

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-3500