Went through the man pages to update for the
v2 instance. Checked against the commands.
Signed-off-by: Mary Anthony <mary@docker.com>
(cherry picked from commit b6d55ebcbc)
"docker logout [SERVER]" will remove the registry server' credentials from
.dockercfg file. If a server is not specified, it will log user out of the
default docker registry server
Docker-DCO-1.1-Signed-off-by: Daniel, Dao Quang Minh <dqminh89@gmail.com> (github: dqminh)
Mary Anthony