[U-Boot] [PATCH] cmd_usb.c: show cmd usage if no args given

[Wolfgang Denk]

Dear Serge Ziryukin,

In message <1272220356-1024-1-git-send-email-ftrvxmtrx at gmail.com> you wrote:
> Signed-off-by: Serge Ziryukin <ftrvxmtrx at gmail.com>
> ---
>  common/cmd_usb.c |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)

Applied.

Note that the old code already printed a usage message when called
without arguments, but only after USB had been started, so your code
is indeed an improvement. Thanks.

Best regards,

Wolfgang Denk

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