[mrtg] adding a new probe to the cfg file

[Steve Shipway]

Dan McDonald wrote:
> One of these days I'll write an Include: that is optional, (cf.
> include() and require() in php) so that missing one file doesn't kill
> the whole run for the other 600 hosts....

Now, if we're listing requests for the next version of MRTG, what I'd really like to have is a wildcarded Include, such as:
  Include: *.cfg
so that you never need to recreate your master.cfg when running MRTG in daemon mode.

Having a missing Include: file as a warning rather than a fail would be useful too, although you'd need to be able to do it both ways (your global.cfg would need to be a required, but the various host.cfg files can of course be missed)

Steve