dotcloud/docker — pull request #6052 by rhatdan (2014-05-27 13:35:19+00:00)
Title: --help option and help command should print to stdout not stderr

--help and help are successfull commands so output should not go to
error.

QE teams have requested this change, also users doing docker help | less
or docker run --help | less would expect this to work.

Docker-DCO-1.1-Signed-off-by: Dan Walsh (github: rhatdan)