/usr/lib/mysql-testsuite/t/variables-notembedded-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 | --loose-slave-skip-errors=3,100,137,0,643,1752
|