Only format error backtrace if stdout is tty
Only format error backtrace if stdout is tty

mattbrictson/bundler-1,philnash/bundler,Elffers/bundler,neslom/bundler,suhastech/bundler,nju520/bundler,asymmetric/bundler,robinboening/bundler,chef/bundler,dilumnavanjana/bundler,ngpestelos/bundler,frsyuki/bundler,steved/bundler,anil826/bundler,joshsoftware/bundler,mvz/bundler,Teino1978-Corp/Teino1978-Corp-bundler,TimMoore/bundler,Eric-Guo/bundler,asymmetric/bundler,cstrahan/bundler,mpapis/bundler,ngpestelos/bundler,CorainChicago/bundler,haonature888/bundler,EasonYi/bundler,lmtim/bundler,ducthanh/bundler,pjump/bundler,roseweixel/bundler,tgxworld/bundler,patvice/bundler,patvice/bundler,jingweno/bundler,jasonkarns/bundler,mtscout6/bundler,simplybusiness/bundler,ipmobiletech/bundler,haonature/bundler,zhangkuaiji/bundler,1337807/bundler,ximus/bundler,suhastech/bundler,cowboyd/bundler,seanlinsley/bundler,mdorrance/bundler,simplybusiness/bundler,pjump/bundler,ligi/bundler,gentoo/bundler,jingweno/bundler,schaary/bundler,Wirachmat/bundler,anil826/bundler,danimashu/bundler,gregkare/bundler,twcctz500000/bundler,sideci-sample/sideci-sample-bundler,Elffers/bundler,cdwort/bundler,mattbrictson/bundler-1,r7kamura/bundler,e2/bundler,asutoshpalai/bundler,gregkare/bundler,mdorrance/bundler,haonaturel/bundler,elovelan/bundler,agis-/bundler,wenderjean/bundler,jaym/bundler,asutoshpalai/bundler,TimMoore/bundler,tgxworld/bundler,seanlinsley/bundler,kohgpat/bundler,lgierth/bundler,bronzdoc/bundler,masarakki/bundler,frsyuki/bundler,eagletmt/bundler,carpodaster/bundler,philnash/bundler,AiyionPrime/bundler,PG-kura/bundler,carpodaster/bundler,masarakki/bundler,christer155/bundler,neslom/bundler,bundler/bundler,ligi/bundler,chef/bundler,Eric-Guo/bundler,smlance/bundler,robinboening/bundler,bronzdoc/bundler,chulkilee/bundler,steved/bundler,CorainChicago/bundler,mpapis/bundler,byroot/bundler,bundler/bundler,davydovanton/bundler,joshsoftware/bundler,dilumnavanjana/bundler,Wirachmat/bundler,lmtim/bundler,cdwort/bundler,pivotal-cf-experimental/bundler,davydovanton/bundler,zhangkuaiji/bundler,kohgpat/bundler,EthanK28/bundler,roseweixel/bundler,RochesterinNYC/bundler,vemmaverve/bundler,schaary/bundler,wenderjean/bundler,nju520/bundler,rkh/bundler,byroot/bundler,jaym/bundler,Teino1978-Corp/Teino1978-Corp-bundler,EasonYi/bundler,jasonkarns/bundler,sideci-sample/sideci-sample-bundler,h4ck3rm1k3/bundler,mvz/bundler,chulkilee/bundler,PG-kura/bundler,agis-/bundler,cstrahan/bundler,elovelan/bundler,ipmobiletech/bundler,AiyionPrime/bundler,h4ck3rm1k3/bundler,ximus/bundler,haocafes/bundler,smlance/bundler,EthanK28/bundler,JuanitoFatas/bundler,danimashu/bundler,RochesterinNYC/bundler,christer155/bundler,pivotal-cf-experimental/bundler