ydump.py using deprecated call.
The following is emitted by the dnstap system test.
I:dnstap:checking dnstap-read YAML output
ydump.py:26: YAMLLoadWarning: calling yaml.load_all() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
pprint.pprint([l for l in yaml.load_all(f.stdout)])