Re: [Qemu-devel] [PATCH ] qemu-help: add category headlines

[Marcel Apfelbaum <marcel.a@redhat.com>]

On Thu, 2013-08-22 at 09:34 -0600, Eric Blake wrote:
> On 08/22/2013 08:13 AM, Markus Armbruster wrote:
> 
> >>> +++ b/qdev-monitor.c
> >>> @@ -156,6 +156,8 @@ static void qdev_print_category_devices(DeviceCategory category)
> >>>      DeviceClass *dc;
> >>>      GSList *list, *curr;
> >>>  
> >>> +    error_printf("%s devices:\n", qdev_category_get_name(category));
> >>
> >> Why is that an error? Shouldn't it go to stdout?
> > 
> > Output of -device help has always gone to stderr, and that has always
> > annoyed me.  Just not enough to fix it.
> 
> Back when libvirt scraped -help output, changing it to use stdout would
> be an incompatible change.  But now that libvirt uses QMP, I would also
> welcome a change to use stdout (but also fall in the category of "not
> enough of a bother for ME to fix it).
It really bothers me. I need to use the help (being new to qemu ...)
and I am always forgetting "2>&1".

Anyone can think of a reason for not sending the help to stdout?   
Marcel

>