Fix clippy errors in common
Fix clippy errors in common

Reviewed By: kassens, tyao1

Differential Revision: D26773124

fbshipit-source-id: 273f2e6952d4b44f29c14c7057a5d30dbbf457e4

wincent/relay,atxwebs/relay,yungsters/relay,wincent/relay,kassens/relay,facebook/relay,facebook/relay,xuorig/relay,xuorig/relay,josephsavona/relay,voideanvalue/relay,xuorig/relay,kassens/relay,yungsters/relay,kassens/relay,wincent/relay,facebook/relay,wincent/relay,wincent/relay,josephsavona/relay,facebook/relay,voideanvalue/relay,facebook/relay,atxwebs/relay,xuorig/relay,josephsavona/relay,voideanvalue/relay,kassens/relay,voideanvalue/relay,xuorig/relay,facebook/relay,voideanvalue/relay,atxwebs/relay,yungsters/relay,atxwebs/relay,kassens/relay,wincent/relay,voideanvalue/relay,xuorig/relay,kassens/relay