refactor: reduce duplication in nameserver logging
refactor: reduce duplication in nameserver logging

and remove a dot import in the process

weaveworks/weave,n054/weave,paulbellamy/weave,n054/weave,n054/weave,paulbellamy/weave,weaveworks/weave,paulbellamy/weave,paulbellamy/weave,n054/weave,n054/weave,weaveworks/weave,weaveworks/weave