Hi all,

I've committed the attached patch as obvious.

This is to set `fill-column' to 80 in c-mode (Emacs default it to 70) so
now M-q does the right thing.  I think is very handy especially in
comments.

Question: should we update the copyright manually for this file or have
it updated by 'update-copyright.py'?  I think this is not scanning the
root of the repo.

Thanks

  Andrea