Code review comment for lp:~guilhem-bichot/bzr/bzr-pull-verbose-shows-tip-before-pull

Thanks John. I merged your changes above, only changed the phrasing of "Tip revision no longer in ancestry", like this:
- self.outf.write('Tip revision no longer in ancestry.'
+ self.outf.write('Tip revision before pull is no longer in this branch.'
Tests work fine. I have nothing to add.
By the way, this whole patch has received so many changes from you and Vincent that it would deserve your names in the NEWS entry.