bug#63726: time-machine without options does not get the latest commit

[Maxim Cournoyer]

Hi,

Ludovic Courtès <ludovic.courtes@inria.fr> writes:

> Hey!
>
> Konrad Hinsen <konrad.hinsen@fastmail.net> skribis:
>
>> This looks good to me. In practice, I doubt anyone would use -q with
>> time-machine, because it makes more sense to specify an explicit channel
>> file every time.
>
> Yeah.  The use case I have in mind is something like:
>
>   guix time-machine -q --commit=XYZ -- build hello
>
> Useful, for example, to share a way to reproduce a bug, making sure
> there’s nothing but the ‘guix’ channel.

The '-q' short option by itself is a bit opaque / hard to memorize;
perhaps complementing it with a self explanatory
'--ignore-channel-files' long option name would be a good idea?

-- 
Thanks,
Maxim