I assume you're refering to my recent commit messages, as they had exactly the bad character you describe. It would be nice to have a mini do-this, dont-do-that on log messages, because they ususally are never looked at until they need to be, and then usually by someone else. From my end I was using:
cvs commit -m "long log message" files
I guess omitting the -m would pop up vi so that I could format something more useful?