Fix bash completion for "docker swarm"
Fix bash completion for "docker swarm"

Signed-off-by: muicoder <831cd1a37ceaecbe9cd3b41d7db306e1d3003ec8@gmail.com>

thaJeztah/cli,thaJeztah/cli,cpuguy83/cli,dnephin/cli,dnephin/cli,cpuguy83/cli,docker/cli,docker/cli