/usr/lib/mysql-testsuite/include/log_cleanup.inc is in percona-server-test-5.6 5.6.22-rel71.0-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | --remove_files_wildcard $MYSQLTEST_VARDIR *.slog
|