Code review comment for lp:~parthm/bzr/no-chown-if-bzrlog-exists

> Pull <lp:~gz/bzr/no-chown-if-bzrlog-exists> for my fixes for these. I've poked
> a couple of other minor bits while I was there, but didn't do anything major.
> (I'd really like windows to avoid this codepath entirely, but this doesn't
> need to be done right now.)

Thanks for the updates Martin [gz]. I have merged in the changes.