emms-player-mpd-get-supported-regexp outdated

My version 0.24.3 of music player daemon has a heading of “Decoder plugins” when mpd — version is executed. (On macOS)

The function emms-player-mpd-get-supported-regexp only looks for a heading called “Decoders plugins” and so misses this heading and fails to get all the extensions that MPD can support. As a result I’m unable to play .opus files in emms unless I manually remove the ‘s’ in Decoders.