$ foreman-yml dump ./config/foreman.yml 2>&1 | head
/var/lib/foreman/foreman-yml/venv/lib/python2.7/site-packages/foreman_yml/main.py:110: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
fixes the warning: