[rancid] Repeat config fetcher problems email to rancid admin

[Randy Bush]

>> I am receiving continuous email to rancid admin that "The following routers
>> have not been successfully contacted for more than 4 hours".
>> When I checked the group log, it say "clogin error: Error: Check your passwd
>> for xxxx" but from rancid server clogin is working for those devices.
> 
> obviously it is lying.
> 
> while temped to leave it at that, try your login tests as the user who
> runs rancid using the name used in the router.db.

82.3% of the time i see this, the device has a new ssh host key that is
in my ~/.aah/known_hosts but not in rancid's

randy