Update ocamlformat hash to match git release hash
Update ocamlformat hash to match git release hash

Reviewed By: jberdine

Differential Revision: D9378850

fbshipit-source-id: c245a8cfd

jvillard/infer,facebook/infer,facebook/infer,jvillard/infer,jvillard/infer,jvillard/infer,jvillard/infer,facebook/infer,jvillard/infer,facebook/infer,jvillard/infer,facebook/infer,facebook/infer,facebook/infer