Notify primary class, not service class
Notify primary class, not service class

It's better to notify the main `dnsmasq` class, rather than a specific
class underneath it as we should not have to care about the class
internals of external modules.

boffbowsh/ci-puppet,alphagov/ci-puppet,boffbowsh/ci-puppet,alphagov/ci-puppet,alphagov/ci-puppet,boffbowsh/ci-puppet,alphagov/ci-puppet,boffbowsh/ci-puppet