[rbldnsd] $TIMESTAMP - 6 minute lag when using +rel option

[Paul McClure]

Hi,

In experimenting with the +rel option with the $TIMESTAMP directive, I am
finding that expiry is actually occurring 6 minutes after the expected expiry
time. For example:

   $TIMESTAMP 20060426140500 +300s

I expect the above to expire at 20060426141000, but it actually expires at
20060426141600 (6 minutes later than expected). The same thing happens if I
use "+5m" instead of "+300s". I didn't try "h" or "d" -- haha, I'm not patient
enough.

Initially, I thought there must be some TTL delay or something like that, but
I cannot seem to find anything that would cause this. It's a minor thing, but
has anyone experienced this?

Thanks,
Paul