Add --uts=host to allow sharing the UTS namespace

Signed-off-by: Darren Shepherd <darren@rancher.com>

docs/sources/reference/commandline/cli.md

@@ -991,6 +991,8 @@ Creates a new container.
       --oom-kill-disable=false   Whether to disable OOM Killer for the container or not
       -P, --publish-all=false    Publish all exposed ports to random ports
       -p, --publish=[]           Publish a container's port(s) to the host
+      --pid=""                   PID namespace to use
+      --uts=""                   UTS namespace to use
       --privileged=false         Give extended privileges to this container
       --read-only=false          Mount the container's root filesystem as read only
       --restart="no"             Restart policy (no, on-failure[:max-retry], always)
@@ -1958,6 +1960,7 @@ To remove an image using its digest:
       -P, --publish-all=false    Publish all exposed ports to random ports
       -p, --publish=[]           Publish a container's port(s) to the host
       --pid=""                   PID namespace to use
+      --uts=""                   UTS namespace to use
       --privileged=false         Give extended privileges to this container
       --read-only=false          Mount the container's root filesystem as read only
       --restart="no"             Restart policy (no, on-failure[:max-retry], always)