dns/rfc2136: unset revision as we are in sync with stable/19.1
dns/rfc2136: unset revision as we are in sync with stable/19.1

dharrigan/plugins,fraenki/plugins,fraenki/plugins,fraenki/plugins,fraenki/plugins,dharrigan/plugins,dharrigan/plugins,fraenki/plugins,dharrigan/plugins,fraenki/plugins,dharrigan/plugins,fraenki/plugins,fraenki/plugins,dharrigan/plugins