If a task encounters an error, the interactive "service create" and
"service update" commands should show that error instead of showing a
stuck progress bar.
To validate:
docker service create --detach=false --name broken --restart-condition=none --replicas 3 busybox asdf
and
docker service create --detach=false --name broken --mode global --restart-condition none busybox asdf
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
1ef585f65d