bug#68785: [PATCH] Fix volume refresh bug in mpc

[Eli Zaretskii]

> Date: Sun, 28 Jan 2024 14:22:16 -0600
> From:  john muhl via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> >From 52f94878d94a6a3b9d59b53e720230546d881a2a Mon Sep 17 00:00:00 2001
> From: john muhl <jm@pub.pink>
> Date: Thu, 25 Jan 2024 21:23:45 -0600
> Subject: [PATCH] Fix volume refresh bug in mpc
> 
> * lisp/mpc.el (mpc-volume-refresh): Only refresh volume when mpd
> is playing.  When stopped or paused volume is nil.  (bug#68785)

Thanks, installed on master, and closing the bug.