[rancid] managing supermicro switches.

[Jason Welsh]

I forgot to say that using the : as the separator was the issue.. I 
changed it to ;
that fixed the issue with the empty log file.

> <group>/routers.up is probably empty.  check your router.db format.  note
> that the : separator was changed to ; to accomodate ipv6 addresses.
>
regards,

Jason