# unit tests.
stdout = None
+ executor.loadingContext.default_docker_image = arvargs.submit_runner_image or "arvados/jobs:"+__version__
+
if arvargs.workflow.startswith("arvwf:") or workflow_uuid_pattern.match(arvargs.workflow) or arvargs.workflow.startswith("keep:"):
executor.loadingContext.do_validate = False
if arvargs.submit and not workflow_op: