Bug#429581: x11proto-scrnsaver-dev: mention mere headers in Description

[Dan Jacobson <jidanni@jidanni.org>]

Package: x11proto-scrnsaver-dev
Version: 1.1.0.0-1
Severity: wishlist

Attempting to clean up my system with

for i in `deborphan --guess-dev`
do apt-cache show $i; apt-get --purge remove $i
done

I encounter the scary looking package Descriptions for packages like
this one, x11proto-scrnsaver-dev, wherein it is not mentioned at all
that they contain mere header files and can be removed without causing
one to not be able to e.g., start xdm tomorrow.

Compare this to kernel-headers etc. packages.

So all the x11proto-*-dev Descriptions should mention that they are
mere headers 'of little use to non-developer end users'.