Code review comment for lp:~mnordhoff/loggerhead/dont-suggest-serving-remote-branches

This makes sure that Loggerhead won't suggest itself as the "To get this branch, use" URL if the branch isn't local, since that isn't supported.

I used "branch.base.startswith('file://')" to check if the transport is local, but I'm open to suggestions if that's the wrong way to do it.