Workaround for broke Travis with YARD 0.9.13 by koic · Pull Request #5925 · rubocop/rubocop

This is a workaround patch to CI. This PR solves the following "The manual directory is out of sync" error. % bundle update --source=yard (snip) Using yard 0.9.13 (was 0.9.12) (snip) % CI=true bund...