def _safe_output(line):
    return not any([
        line.startswith('Listing') and line.endswith('...'),
        '...done' in line,
        line.startswith('WARNING:')
    ])
Looks for rabbitmqctl warning, or general formatting, strings that aren't
dataset/ETHPy150Open saltstack/salt/salt/modules/rabbitmq.py/_safe_output