Add rspec test when run bundle outdated with invalid gem name
Add rspec test when run bundle outdated with invalid gem name

The test expects the status code to return a non-zero exit code.
https://github.com/bundler/bundler-features/issues/6

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