Don't start additional thread if jobs == 1
Don't start additional thread if jobs == 1

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