# help on local daemon shouldn't display experimental commands
$ docker --help
[...]
Management Commands:
  container   Manage containers
  image       Manage images
  network     Manage networks
  node        Manage Swarm nodes
  service     Manage services
[...]
# OK

# help on remote daemon should display experimental commands
$ DOCKER_HOST=<remote_addr> docker --help
[...]
Management Commands:
  checkpoint  Manage checkpoints
  container   Manage containers
  image       Manage images
  network     Manage networks
  node        Manage Swarm nodes
  plugin      Manage plugins
  service     Manage services
  stack       Manage Docker stacks
[...]
# OK

# help on remote daemon should display experimental commands
$ docker -H <remote_addr> --help
[...]
Management Commands:
  container   Manage containers
  image       Manage images
  network     Manage networks
  node        Manage Swarm nodes
  service     Manage services
[...]
# KO

$ docker --help
[...]
Management Commands:
  checkpoint  [experimental] Manage checkpoints
  container   Manage containers
  image       Manage images
  network     Manage networks
  node        Manage Swarm nodes
  plugin      [experimental] Manage plugins
  service     Manage services
  stack       [experimental] Manage Docker stacks
[...]

$ docker -H <remote_addr> --help
[...]
Management Commands:
  checkpoint  [experimental] Manage checkpoints
  container   Manage containers
  image       Manage images
  network     Manage networks
  node        Manage Swarm nodes
  plugin      [experimental] Manage plugins
  service     Manage services
  stack       [experimental] Manage Docker stacks
[...]

$ DOCKER_EXPERIMENTAL=1 docker -H <remote_addr> --help
[...]
Management Commands:
  checkpoint  Manage checkpoints
  container   Manage containers
  image       Manage images
  network     Manage networks
  node        Manage Swarm nodes
  plugin      Manage plugins
  service     Manage services
  stack       Manage Docker stacks
[...]