Add radius server hostname to tickets

[Alan DeKok]

Jeffrey Hutzelman wrote:
>>   Why not just statically configure the hostname in radiusd.conf?
> 
> Because that makes it harder to share identical configuration among
> several servers?

  <grumble>  I hate it when people affect my delusions with reality.

  Ok... this is something which should be addressed.  The simplest thing
maybe to update the configuration parser to allow it to environment
variables, e.g. $HOSTNAME, or something similar.

  Suggestions?

  Alan DeKok.