Use flatten withou bang.
Use flatten withou bang.

The bang variant returns nil in case there was no change needed.

chef/bundler,cstrahan/bundler,Elffers/bundler,byroot/bundler,nju520/bundler,roseweixel/bundler,mattbrictson/bundler-1,chulkilee/bundler,cstrahan/bundler,EthanK28/bundler,ipmobiletech/bundler,jingweno/bundler,cdwort/bundler,christer155/bundler,danimashu/bundler,masarakki/bundler,danimashu/bundler,asutoshpalai/bundler,nju520/bundler,chef/bundler,joshsoftware/bundler,CorainChicago/bundler,carpodaster/bundler,chulkilee/bundler,PG-kura/bundler,Eric-Guo/bundler,Eric-Guo/bundler,simplybusiness/bundler,masarakki/bundler,neslom/bundler,anil826/bundler,bundler/bundler,robinboening/bundler,EasonYi/bundler,ligi/bundler,Elffers/bundler,AiyionPrime/bundler,mdorrance/bundler,PG-kura/bundler,ngpestelos/bundler,zhangkuaiji/bundler,neslom/bundler,roseweixel/bundler,kohgpat/bundler,Wirachmat/bundler,ngpestelos/bundler,davydovanton/bundler,dilumnavanjana/bundler,christer155/bundler,h4ck3rm1k3/bundler,Teino1978-Corp/Teino1978-Corp-bundler,davydovanton/bundler,EthanK28/bundler,lmtim/bundler,frsyuki/bundler,Wirachmat/bundler,ipmobiletech/bundler,zhangkuaiji/bundler,tgxworld/bundler,philnash/bundler,mvz/bundler,ximus/bundler,mdorrance/bundler,mattbrictson/bundler-1,philnash/bundler,steved/bundler,Teino1978-Corp/Teino1978-Corp-bundler,jingweno/bundler,kohgpat/bundler,mvz/bundler,suhastech/bundler,asutoshpalai/bundler,h4ck3rm1k3/bundler,elovelan/bundler,CorainChicago/bundler,RochesterinNYC/bundler,mpapis/bundler,bronzdoc/bundler,jasonkarns/bundler,AiyionPrime/bundler,schaary/bundler,pivotal-cf-experimental/bundler,lmtim/bundler,simplybusiness/bundler,wenderjean/bundler,ligi/bundler,schaary/bundler,anil826/bundler,bundler/bundler,agis-/bundler,cdwort/bundler,byroot/bundler,elovelan/bundler,dilumnavanjana/bundler,agis-/bundler,asymmetric/bundler,wenderjean/bundler,RochesterinNYC/bundler,joshsoftware/bundler,seanlinsley/bundler,gregkare/bundler,steved/bundler,asymmetric/bundler,jasonkarns/bundler,bronzdoc/bundler,carpodaster/bundler,frsyuki/bundler,patvice/bundler,robinboening/bundler,tgxworld/bundler,patvice/bundler,gregkare/bundler,suhastech/bundler,mpapis/bundler,pivotal-cf-experimental/bundler,EasonYi/bundler,ximus/bundler,seanlinsley/bundler