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Re: [Qemu-devel] [Qemu-block] [PATCH v2 3/3] qemu-img: print short help

From: Kashyap Chamarthy
Subject: Re: [Qemu-devel] [Qemu-block] [PATCH v2 3/3] qemu-img: print short help on getopt failure
Date: Tue, 21 Mar 2017 23:15:26 +0100
User-agent: Mutt/ (2016-04-01)

On Fri, Mar 17, 2017 at 06:45:41PM +0800, Stefan Hajnoczi wrote:
> Printing the full help output obscures the error message for an invalid
> command-line option or missing argument.
> Before this patch:
>   $ ./qemu-img --foo
>   ...pages of output...

That gives me:

    $ qemu-img --foo
    qemu-img: unrecognized option '--foo'

I think you meant any one of the `qemu-img create|convert|... --foo`:

    $ qemu-img create --foo

Which _does_ give "pages of output".

Just noting if you want to tweak the commit message.

> After this patch:
>   $ ./qemu-img --foo
>   qemu-img: unrecognized option '--foo'
>   Try 'qemu-img --help' for more information



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