old_contents: from fabfile.apps import api
  from fabfile.apps import generator
  from fabfile.apps import geodns
  from fabfile.apps import hamachi
  from fabfile.apps import nginx
  from fabfile.apps import nodejs
new_contents: from fabfile.apps import api
  from fabfile.apps import generator
  from fabfile.apps import geodns
  from fabfile.apps import hamachi
  from fabfile.apps import nginx
  from fabfile.apps import nodejs
  from fabfile.apps import dnsupdater
subject: Include dnsupdater