Our project had the `cpplint` linter configured and it was working really well. Then I updated arcanist a few days ago and things broke stopped working. It says the linter runs "Successfully", but it actually doesn't run at all. It seems like no files are actually being passed into `cpplint` so it just returns instantly.
If I revert the commit 4330b27 (https://secure.phabricator.com/D12696) by , the linter starts to work again.