Bug#4221: knews silently overwrites configuration file

[Ian Jackson <ian@chiark.chu.cam.ac.uk>]

Nils Rennebarth writes ("Bug#4221: knews silently overwrites configuration file"):
> Knews should handle an upgrade more intelligently and not simply overwrite
> the (possibly customized) /usr/X11R6/lib/X11/app-defaults/Knews
> configuration file.
> 
> I know this is difficult to do right. A lot of Knews functionality depends
> on a working Knews.ad and what is necessary there changes from release to
> release. 
> Maybe it should look if there already exists one and give the user an
> option to install a new one / back up the old one ... like dpkg does.
> 
> Listing it as a conffile is not satisfactory though because it is created
> >from  user-input at installtime.

Furthermore, configuration should definitely not be in /usr.  It
belongs in /etc.

Ian.