ansible/ansible — pull request #6711 by j2sol (2014-03-26 23:45:21+00:00)
Title: Treat 255 errors from raw as dark host

Any other module is able to detect a dark host, but raw was treating 255
as a return code from the module execution, rather from the connection
attempt. This change allows 255 to be treated as a connection failure
when using the raw module.