celluloid/celluloid-io — pull request #68 by knewter (2013-05-30 11:50:20+00:00)
Title: Fix TCPServer duck typing

Ruby's TCPServer takes 1 or 2 arguments. This makes
Celluloid::IO::TCPServer operate the same, so that it can be a drop-in
replacement in cases where the Ruby TCPServer's hostname is not
specified. Fixes #67.