underscores for tar.gz and diff.gz?

[branderh@iaehv.nl (Erick Branderhorst)]

> ># dchanges ce=elisp-manual-19-2.4/debian.Changelog -n -e *19-2.4-2*
> >Deb file ok: elisp-manual_19-2.4-2_all.deb
> >WARNING: old style file name: elisp-manual-19-2.4-2.tar.gz
> >          should be: elisp-manual_19-2.4-2.deb      ~~~~~~
> 
> I think this is right:
> >WARNING: old style file name: elisp-manual-19-2.4-2.diff.gz
> >          should be: elisp-manual_19-2.4-2.diff.gz
> >                                 ~
What is smart in this situation?
Erick