[bug#59197] [PATCH 0/3] Support 'herd configuration SERVICE' to view config file

["宋文武 via Guix-patches via" <guix-patches@gnu.org>]

Ludovic Courtès <ludo@gnu.org> writes:

> Hi!
>
> So far, to view the config file of sshd, elogind, etc., you'd have to do:
>
>   cat /proc/PID/cmdline | xargs -0
>
> or sometimes:
>
>   cat /proc/PID/environ | xargs -0
>
> and extract the config file name from there.
>
> With this change, you can do:
>
>   cat $(herd configuration elogind)
>
> or similar.  Simple but convenient.
>
> This patch series adds it to a few core services.  Adding it elsewhere
> is left as an exercise to the reader.  :-)

Look great to me, thank you!