Many command flags appear undocumented or incomplete

[fizx]

Docker pull is documented like so:

$ docker pull -h

Usage: docker pull NAME

Pull an image or a repository from the registry

But looking at source, there appears to be a -registry and a -t as well.

cmd := rcli.Subcmd(stdout, "pull", "NAME", "Pull an image or a repository from the registry")
tag := cmd.String("t", "", "Download tagged image in repository")
registry := cmd.String("registry", "", "Registry to download from. Necessary if image is pulled by ID")

However, actually using that flag appears not to work.

$ docker pull -t=asdfsa NAME
flag provided but not defined: -t

Usage: docker pull NAME

Pull an image or a repository from the registry

[vieux]

Hello,

Most of thoses issues will be resolved with #432