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

In "bzr pull":
- show the tip revision of the destination branch before pulling, if --verbose and something was pulled
- write it to .bzr.log, unconditionally.
Interest: If a pull brings in some bug, the printed revision can serve as a point to revert to;
if a pull brings in some new revisions to review, the printed revision can serve as a low bound for what
revisions to review.
Printing to stdout is convenient; printing to .bzr.log survives a bit longer (useful if you discover a bug in the pulled revisions only after some time).
Could somebody please give some feedback?