Daily `arc lint --take CLANGFORMAT`
Daily `arc lint --take CLANGFORMAT`

Reviewed By: zertosh

Differential Revision: D22624109

fbshipit-source-id: b8969ac0b8b44a8d60bd9d20416dbc051f4bcf4f

facebook/mcrouter,facebook/mcrouter,facebook/mcrouter,facebook/mcrouter