joyent/node — pull request #7732 by chrisdickinson (2014-06-05 00:24:49+00:00)
Title: dns: send `lookup` c-ares errors to callback

Calling `dns.lookup` with arguments that generate an error from c-ares
previously sent those errors back to the callback. This commit restores
that behavior.

Fixes joyent/node#7731.