The cli now doesn't echo the container ID when started using either -a
or -i. Also fixes `TestStartAttachCorrectExitCode` which incorrectly
called start with the result of wait rather than the container ID.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Upstream-commit: eeefa2dc8c45a9be4cfb3a52029e6b46570e5ebe
Component: engine