clean up commit messages?

[c.]

Hi, 

As usual when I have hg-related question I am CC-ing Jordi.

I was having a look at the code written by Kai for his GSoC Project
and the first thing I noted is that his commit messages don't comply
with the guidelines:

http://wiki.octave.org/Commit_message_guidelines

So I was wondering, is there a way to clean up those messages
before merging his code in the main repo?

c.