In one of the latest docker UI updates, the flags structure expects to
have a ShortUsage function. Without that any UI event that triggers an
short usage panics.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
This is an experiment by modularizing the client UI handler in libnetwork
while the actual UI hook to the docker chain can come from Docker Project.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
