Reduce invocation of `git ls-files`.
Reduce invocation of `git ls-files`.

This also removes shell brace expasion which is a ksh/bash extension
that does not work with POSIX sh.

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