[MERGE] left align log output if it only contains merge revisions

[Ian Clatworthy]

Kent Gibson wrote:

> The only time this indent patch will apply is when you explicitly
> request a set of merge revisions using bzr log -rA..B, so you are
> pretty well aware already of what  you will be getting.

And that was why I felt it was ok to accept it.

> Of course being able to do that requires the patch for 4663 - which is
> also bit rotting in the review queue (thanks again to Aaron for
> reviewing that one).

I asked poolie yesterday to review that one. It's on my list to get
explicitly merged or rejected for 0.18.

Ian C.