[sheepdog] [PATCH v3] dog: let usage printing adopt nested subcommands

[Liu Yuan]

On Fri, Nov 15, 2013 at 12:10:48AM +0900, Hitoshi Mitake wrote:
> Signed-off-by: Hitoshi Mitake <mitake.hitoshi at lab.ntt.co.jp>
> ---
> 
> v3: remove a needless new parameter of subcommand_usage()

Applied thanks

Yuan