fix small lint issues
fix small lint issues

Summary: Fixes lint warning about shadowing variables defined in an outer scope.

Reviewed By: leebyron

Differential Revision: D4974951

fbshipit-source-id: 6403662cead09488e73344bf0046b3ffd0763ab7

freiksenet/relay,iamchenxin/relay,kassens/relay,atxwebs/relay,voideanvalue/relay,zpao/relay,chentsulin/relay,voideanvalue/relay,facebook/relay,voideanvalue/relay,chirag04/relay,josephsavona/relay,kassens/relay,josephsavona/relay,benjaminogles/relay,atxwebs/relay,chirag04/relay,benjaminogles/relay,chentsulin/relay,cpojer/relay,zpao/relay,cpojer/relay,atxwebs/relay,facebook/relay,freiksenet/relay,wincent/relay,xuorig/relay,wincent/relay,voideanvalue/relay,facebook/relay,facebook/relay,xuorig/relay,voideanvalue/relay,xuorig/relay,iamchenxin/relay,facebook/relay,cpojer/relay,apalm/relay,kassens/relay,kassens/relay,wincent/relay,voideanvalue/relay,dbslone/relay,iamchenxin/relay,wincent/relay,xuorig/relay,wincent/relay,dbslone/relay,kassens/relay,chentsulin/relay,apalm/relay,atxwebs/relay,zpao/relay,facebook/relay,josephsavona/relay,chirag04/relay,wincent/relay,yungsters/relay,cpojer/relay,rosskevin/relay,rosskevin/relay,yungsters/relay,freiksenet/relay,iamchenxin/relay,xuorig/relay,xuorig/relay,apalm/relay,yungsters/relay,kassens/relay,benjaminogles/relay