mkcloud: fix calling for functions
mkcloud: fix calling for functions

that can get optional params,
otherwise it would be called with the function name as only param
instead of no param

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