docker-run man page has screwed up indenting on --net option

This patch fixes the indenting.

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
kr/pty: vendor upstream 05017fcccf

Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com>
Merge pull request #9713 from unclejack/bump_vendored_kr_pty

kr/pty: vendor upstream 05017fcccf
Merge pull request #9711 from rhatdan/man

docker-run man page has screwed up indenting on --net option
Set container_uuid environment

If you are running with systemd as init 1 and specify the container_uuid environment
variable, systemd will create /etc/machine-id with the correct data.

Then on the host you can setup journald to watch the container.

systemd only allows 32 chars in the UUID stored in /etc/machine-id

Then we can later apply a different patch to setup journald to watch
containers from the host and log all syslog/stdout/stderr data together
int the hosts journal.

The following link explains what systemd expects to be setup.

http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface/

This should replace

https://github.com/docker/docker/issues/3506

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Create Journal directory so that journal on the host can see journal content in container

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
Have docker register its machine with systemd

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)