mkcloud: fix help for runupdate command
mkcloud: fix help for runupdate command

aspiers/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,vmoravec/automation,vmoravec/automation,gosipyan/automation,gosipyan/automation,SUSE-Cloud/automation,aspiers/automation,aspiers/automation,vmoravec/automation,vmoravec/automation,gosipyan/automation,gosipyan/automation,aspiers/automation