[Savannah-hackers-public] dnsbl.txt needs an upgrade

[Nicodemo Alvaro]

I sent an e-mail about how the script I modified was had some
slowness. Apparently one of the dnsbl lists officially stopped
returning responses last March.

So we should update the savane-cleanup to remove any related lines
from dnsbl.txt

http://dsbl.org/

-- 
Nicodemo