mkcloud: make sure all errors go to stderr
mkcloud: make sure all errors go to stderr

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