[ratelimits] new RRL patch

[Paul Vixie]

Feng He wrote:
> I could open a ssh account for you and you could login directly to the
> nameserver host to watch the result, is it right?

i think that i would not enjoy such great responsibility for keeping
your system safe.

perhaps you would be willing to share your named.conf file here, and
explain the change in behaviour you saw when you first began to use RRL?