DE794: Make sure default group names are valid
DE794: Make sure default group names are valid

toabctl/crowbar,rhafer/crowbar,crowbar/crowbar,tserong/crowbar,vwallfahrer/crowbar,SUSE-Cloud/crowbar,aplanas/crowbar,dirkmueller/crowbar,aspiers/crowbar,MaximilianMeister/crowbar,aplanas/crowbar,rhafer/crowbar,crowbar/crowbar,vwallfahrer/crowbar,dirkmueller/crowbar,MaximilianMeister/crowbar,rsalevsky/crowbar,aspiers/crowbar,nkrinner/crowbar,SUSE-Cloud/crowbar,rhafer/crowbar,mmnelemane/crowbar,mmnelemane/crowbar,tserong/crowbar,toabctl/crowbar,nkrinner/crowbar,rsalevsky/crowbar