/usr/lib/mysql-testsuite/t/percona_bug1218330-master.opt 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 | --innodb-adaptive-hash-index-partitions=32
|