Better message for name specified twice
Better message for name specified twice

Fix #1518

pdh/kops,gambol99/kops,ikropotov/kops,dacohen/kops,luomiao/kops,robinpercy/kops,sp-borja-juncosa/kops,WillemMali/kops,kubernetes/kops,sethpollack/kops,ikropotov/kops,BradErz/kops,dacohen/kops,faraazkhan/kops,gambol99/kops,MadDogTechnology/kops,dacohen/kops,aledbf/kops,WillemMali/kops,luomiao/kops,ikropotov/kops,sp-borja-juncosa/kops,BradErz/kops,aledbf/kops,austinmoore-/kops,MadDogTechnology/kops,sethpollack/kops,faraazkhan/kops,faraazkhan/kops,mad01/kops,mad01/kops,leandrocr/kops,tsupertramp/kops,mad01/kops,leandrocr/kops,chrislovecnm/kops,blakebarnett/kops,pdh/kops,kubernetes/kops,zytek/kops,justinsb/kops,tsupertramp/kops,tsupertramp/kops,kris-nova/kops,justinsb/kops,BradErz/kops,DualSpark/kops,kubernetes/kops,luomiao/kops,aledbf/kops,DualSpark/kops,kris-nova/kops,sp-borja-juncosa/kops,robinpercy/kops,robinpercy/kops,zytek/kops,andrewsykim/kops,leandrocr/kops,zytek/kops,kris-nova/kops,pdh/kops,DualSpark/kops,WillemMali/kops,austinmoore-/kops,WillemMali/kops,leandrocr/kops,reactiveops/kops,kris-nova/kops,andrewsykim/kops,blakebarnett/kops,andrewsykim/kops,MadDogTechnology/kops,BradErz/kops,robinpercy/kops,dacohen/kops,blakebarnett/kops,chrislovecnm/kops,DualSpark/kops,faraazkhan/kops,sethpollack/kops,sethpollack/kops,andrewsykim/kops,chrislovecnm/kops,pdh/kops,blakebarnett/kops,luomiao/kops,sp-borja-juncosa/kops,chrislovecnm/kops,reactiveops/kops,mad01/kops,MadDogTechnology/kops,gambol99/kops,ikropotov/kops,aledbf/kops,justinsb/kops,reactiveops/kops,tsupertramp/kops,zytek/kops,reactiveops/kops,austinmoore-/kops,gambol99/kops,austinmoore-/kops