Print pretty output when rebuilding xctool
Print pretty output when rebuilding xctool

Summary:
Does what it says on the tin. This depends on D789258.

Screenshot: https://www.facebook.com/pxlcld/kf8S

Test Plan: Tools/xctool.sh made the above screenshot. ^^^

githubdelegate/xctool,bgertzfield/xctool,n054/xctool,soundcloud/xctool,soundcloud/xctool,agreco/xctool,ekingo/xctool,kernandreas/xctool,bhamiltoncx/xctool,blighli/xctool,SuPair/xctool,lpios/xctool,kernandreas/xctool,facebook/xctool,theiren46/xctool,Richardlihui/xctool,theiren46/xctool,blighli/xctool,yaoxiaoyong/xctool,duk42111/xctool,lpios/xctool,AutoScout24/xctool,duk42111/xctool,PSPDFKit-labs/xctool,ekingo/xctool,modulexcite/xctool,FiftyThree/xctool,lqi/xctool,LegNeato/xctool,yaoxiaoyong/xctool,adamjernst/xctool,theiren46/xctool,modulexcite/xctool,adamjernst/xctool,SuPair/xctool,kernandreas/xctool,Richardlihui/xctool,FiftyThree/xctool,dvor/xctool,blighli/xctool,kcoons/xctool,PSPDFKit-labs/xctool,Richardlihui/xctool,dvor/xctool,agreco/xctool,soundcloud/xctool,Monits/xctool,kamoljan/xctool,leopardpan/xctool,kamoljan/xctool,ekingo/xctool,ACChe/xctool,bgertzfield/xctool,1yvT0s/xctool,githubdelegate/xctool,Monits/xctool,bhamiltoncx/xctool,bhamiltoncx/xctool,adamjernst/xctool,1yvT0s/xctool,LegNeato/xctool,kcoons/xctool,n054/xctool,adamjernst/xctool,1yvT0s/xctool,ACChe/xctool,facebook/xctool,FiftyThree/xctool,n054/xctool,kcoons/xctool,AutoScout24/xctool,modulexcite/xctool,facebook/xctool,kamoljan/xctool,1yvT0s/xctool,bhamiltoncx/xctool,n054/xctool,AutoScout24/xctool,ACChe/xctool,ACChe/xctool,bgertzfield/xctool,lpios/xctool,0xced/xctool,modulexcite/xctool,facebook/xctool,AutoScout24/xctool,soundcloud/xctool,ACChe/xctool,dvor/xctool,SuPair/xctool,lpios/xctool,kernandreas/xctool,trello/xctool,leopardpan/xctool,Monits/xctool,LegNeato/xctool,soundcloud/xctool,bhamiltoncx/xctool,leopardpan/xctool,jspahrsummers/xctool,blighli/xctool,lqi/xctool,n054/xctool,facebook/xctool,ekingo/xctool,PSPDFKit-labs/xctool,jspahrsummers/xctool,soundcloud/xctool,lqi/xctool,lpios/xctool,0xced/xctool,jspahrsummers/xctool,bgertzfield/xctool,leopardpan/xctool,LegNeato/xctool,bgertzfield/xctool,ACChe/xctool,trello/xctool,n054/xctool,trello/xctool,lpios/xctool,PSPDFKit-labs/xctool,githubdelegate/xctool,githubdelegate/xctool,trello/xctool,theiren46/xctool,SuPair/xctool,jspahrsummers/xctool,duk42111/xctool,dvor/xctool,bhamiltoncx/xctool,PSPDFKit-labs/xctool,agreco/xctool,yaoxiaoyong/xctool,kamoljan/xctool,facebook/xctool,bgertzfield/xctool,yaoxiaoyong/xctool,Richardlihui/xctool,duk42111/xctool,FiftyThree/xctool,agreco/xctool,Monits/xctool