Fix build script error if running locally and xcpretty-travis-formatter is not installed
Fix build script error if running locally and xcpretty-travis-formatter is not installed

maicki/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,lappp9/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,maicki/AsyncDisplayKit,rmls/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,yufenglv/AsyncDisplayKit,yufenglv/AsyncDisplayKit,maicki/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,lappp9/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,harryworld/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,harryworld/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,harryworld/AsyncDisplayKit,samhsiung/AsyncDisplayKit,rmls/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,smyrgl/AsyncDisplayKit,george-gw/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,gazreese/AsyncDisplayKit,gazreese/AsyncDisplayKit,flovouin/AsyncDisplayKit,JetZou/AsyncDisplayKit,bimawa/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,rmls/AsyncDisplayKit,samhsiung/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,gazreese/AsyncDisplayKit,levi/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,romyilano/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,JetZou/AsyncDisplayKit,flovouin/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,levi/AsyncDisplayKit,facebook/AsyncDisplayKit,levi/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,maicki/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,facebook/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit,rmls/AsyncDisplayKit,romyilano/AsyncDisplayKit,george-gw/AsyncDisplayKit,levi/AsyncDisplayKit,smyrgl/AsyncDisplayKit,yufenglv/AsyncDisplayKit,flovouin/AsyncDisplayKit,gazreese/AsyncDisplayKit,Xinchi/AsyncDisplayKit,Xinchi/AsyncDisplayKit,Xinchi/AsyncDisplayKit,bimawa/AsyncDisplayKit,flovouin/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,harryworld/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,lappp9/AsyncDisplayKit,facebook/AsyncDisplayKit,JetZou/AsyncDisplayKit,Xinchi/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,maicki/AsyncDisplayKit,romyilano/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,romyilano/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,smyrgl/AsyncDisplayKit,yufenglv/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,Xinchi/AsyncDisplayKit,harryworld/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,bimawa/AsyncDisplayKit,facebook/AsyncDisplayKit,levi/AsyncDisplayKit,rmls/AsyncDisplayKit,george-gw/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,lappp9/AsyncDisplayKit,george-gw/AsyncDisplayKit,yufenglv/AsyncDisplayKit,JetZou/AsyncDisplayKit,flovouin/AsyncDisplayKit,bimawa/AsyncDisplayKit,hannahmbanana/AsyncDisplayKit,garrettmoon/AsyncDisplayKit,jellenbogen/AsyncDisplayKit,smyrgl/AsyncDisplayKit,samhsiung/AsyncDisplayKit,rahul-malik/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,JetZou/AsyncDisplayKit,samhsiung/AsyncDisplayKit,Adlai-Holler/AsyncDisplayKit