Increased core revision to force recompile

Ignore-this: 5ec89bd3b3fbd6dffcb99ef91954b9c7

darcs-hash:20091221123612-1e3d8-df96b96d8b5f4b33b15be432a980b7927b5c018e
Made the return values of private functions in DNSLookup consistent

Ignore-this: 84e7ccfd3c32e6d8de53bb8fb476e778

darcs-hash:20091221130720-1e3d8-ddb71ae6d6db9595a79ce394784312a48682ff1f