[Xprint] more Augment_Printer_List problems

[Toby Blake]

> i run into the same problem. After 3h of writing an augment script,
> which only returns the user-relevant printers from the more than 200
> printers on our server, i now no more able to print from Firefox.
>
> I cannot imagine that no Xprint-user ever used the augment
> configuration option? Why this bug still exists, when this error
> already was reported in March 2004???
>
> Is there any config option to specify a "special" spool comand?
>
> Any hints to solve the problem are welcome.

I changed the source code to solve this bug in my case.  I modified
src/xprint_main/xc/programs/Xserver/Xprint/spooler.c and added my own
LIST_QUEUES_xxxx and DEFAULT_SPOOL_COMMAND_xxxx and added a new
spooler type to xpstm[], which I can call with the -XpSpoolerType
agument to Xprt.

It's not ideal, given that this is supposed to be configurable, but it
serves as a workaround for the moment.

Toby