[cvsnt] Require Comment on Commit

[Gerhard Fiedler]

Arthur Barrett wrote:

> Currently you cannot make bug numbers mandatory - but that feature
> should be in the next release (2.5.04) in the next few weeks.

Just make sure you always have a "general bug" bug number available for the
cases that are not covered by a specific bug entry -- otherwise you might
end up with commits to arbitrary bugs :)

Gerhard