This saves thousands of getcwd() system calls and improves the performance of running Rubocop, which is also used by HAML linting. Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/61383
This cop forbids the use of `element :foo, 'pattern'` and `element :bar, /pattern/` in QA files. Signed-off-by: Rémy Coutable <remy@rymai.me>