Set connection->receiving to false when mpd_sync_recv_line() fails
Set connection->receiving to false when mpd_sync_recv_line() fails

Signed-off-by: Ali Polatel <c6fd6e1e3811fdddbdae9373228e84b89da423ff@gmail.com>

OpenInkpot-archive/iplinux-libmpdclient,yusiwen/libmpdclient,jagleeso/libmpdclient,cmende/libmpdclient,jwise/libmpdclient,psych0tik/libmpdclient2,jagleeso/libmpdclient,jwise/libmpdclient,sl0th/libmpdclient,sl0th/libmpdclient,psych0tik/libmpdclient2,yusiwen/libmpdclient,yusiwen/libmpdclient,OpenInkpot-archive/iplinux-libmpdclient,jwise/libmpdclient,jagleeso/libmpdclient,cmende/libmpdclient,cmende/libmpdclient,sl0th/libmpdclient