Enable linting: lint config changes plus arc lint command (#3966)
Summary:
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/3966
This actually enables the linting.
Manual changes:
- tools/arcanist/lint/fbsource-licenselint-config.toml
- tools/arcanist/lint/fbsource-lint-engine.toml
Automated changes:
`arc lint --apply-patches --take LICENSELINT --paths-cmd 'hg files faiss'`
Reviewed By: asadoughi
Differential Revision: D64484165
fbshipit-source-id: 4f2f6e953c94ef6ebfea8a5ae035ccfbea65ed04
eff0898a13