fix ocaml 4.01 build (on mac only?)
fix ocaml 4.01 build (on mac only?)

Summary: the travis build for 4.01 on mac gets a syntax error trying to alias a module in an mli.

4.01 on linux and 4.02 in both platforms are fine. wtf?

Reviewed By: gabelevi

Differential Revision: D2638220

fb-gh-sync-id: 093feff660b997b08619666abff05f19ff563729

MichaelDeBoey/flow,d14b3l/flow,popham/flow,ForbesLindesay/flow,MichaelDeBoey/flow,d14b3l/flow,fletcherw/flow,facebook/flow,gabelevi/flow,shiftcars/flow,jeffmo/flow,ylu1317/flow,OCamlPro/flow,nmote/flow,jeffmo/flow,d14b3l/flow,jamesgpearce/flow,AprilArcus/flow,AgentME/flow,samwgoldman/flow,jamesgpearce/flow,d14b3l/flow,claudiopro/flow,MichaelDeBoey/flow,nmote/flow,nmote/flow,chenglou/flow,jamesgpearce/flow,nmote/flow,mroch/flow,popham/flow,TiddoLangerak/flow,samwgoldman/flow,JonathanUsername/flow,fletcherw/flow,d14b3l/flow,popham/flow,jgrund/flow,popham/flow,ylu1317/flow,samwgoldman/flow,ForbesLindesay/flow,JonathanUsername/flow,AprilArcus/flow,jgrund/flow,jamesgpearce/flow,popham/flow,mroch/flow,facebook/flow,mroch/flow,ylu1317/flow,facebook/flow,popham/flow,AgentME/flow,graue/flow,shiftcars/flow,OCamlPro/flow,popham/flow,gabelevi/flow,gabro/flow,jeffmo/flow,gabro/flow,nmote/flow,OCamlPro/flow,claudiopro/flow,gabelevi/flow,jdelStrother/flow,graue/flow,graue/flow,jeffmo/flow,cesarandreu/flow,AgentME/flow,JonathanUsername/flow,samwgoldman/flow,AprilArcus/flow,jdelStrother/flow,gabro/flow,fletcherw/flow,chenglou/flow,samwgoldman/flow,jdelStrother/flow,jeffmo/flow,MichaelDeBoey/flow,shiftcars/flow,jamesgpearce/flow,fletcherw/flow,jdelStrother/flow,mroch/flow,facebook/flow,AprilArcus/flow,d14b3l/flow,facebook/flow,jgrund/flow,gabelevi/flow,jgrund/flow,facebook/flow,TiddoLangerak/flow,JonathanUsername/flow,chenglou/flow,fletcherw/flow,ylu1317/flow,mroch/flow,ForbesLindesay/flow,jamesgpearce/flow,OCamlPro/flow,AgentME/flow,JonathanUsername/flow,claudiopro/flow,jgrund/flow,gabelevi/flow,gabro/flow,cesarandreu/flow,mroch/flow,jdelStrother/flow,gabelevi/flow,shiftcars/flow,TiddoLangerak/flow,samwgoldman/flow,cesarandreu/flow,jeffmo/flow,chenglou/flow,jamesgpearce/flow,AprilArcus/flow,jdelStrother/flow,graue/flow,nmote/flow,shiftcars/flow,nmote/flow,ylu1317/flow,gabro/flow,shiftcars/flow,gabelevi/flow,gabro/flow,samwgoldman/flow,ForbesLindesay/flow,mroch/flow,JonathanUsername/flow,facebook/flow,cesarandreu/flow,chenglou/flow,graue/flow,ForbesLindesay/flow,MichaelDeBoey/flow,ForbesLindesay/flow,AgentME/flow,TiddoLangerak/flow,fletcherw/flow,TiddoLangerak/flow,jgrund/flow,claudiopro/flow,claudiopro/flow,chenglou/flow,AprilArcus/flow,JonathanUsername/flow,graue/flow