[cvsnt] verifymsg (syntax and tests

[Peter Crowther]

> From: [...] feymard at stago.fr
> I just want to forbid to all users commits without message. 
> For that, I work on verifymsg file.

Expect to see a lot of commit messages saying 'aaa', 'poi' or similar.
>From experience, your developers will find ways to get round any
technology you impose on them.  I'd suggest spending the effort on
educating your developers instead as to why empty commit messages are A
Bad Idea.

		- Peter