This patch is originally by Mike Ireton <linuxhacker@yahoo.com>.
It's purpose is to allow pppd to be called with a special syspath
argument. I'll document what I mean by that and what it is useful for
on http://www.bewley.net/linux/ a little bit later.

This directory is where pppd will look for configuration
info such as chap-secrets, options, etc. 

This may be useful if you are providing unique VPNs for multiple customers 
on a single linux box.