OpenRC: rework init.d file

The original version reimplemented start() and stop() circumvented the
added logic in the default ones.

This simplifies the file and allows the user to configure the service in
/etc/conf.d/cbk-next-daemon.

One example would be:
command_args="--enable-experimental"

linux/openrc/ckb-next-daemon.in

@@ -1,29 +1,10 @@
 #!/sbin/openrc-run
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2023 Gentoo Authors
 # Copyright 2017-2018 ckb-next Development Team <[email protected]>
 # Distributed under the terms of the GNU General Public License v2
 
-extra_started_commands="reload"
 command="@CMAKE_INSTALL_PREFIX@/bin/ckb-next-daemon"
 description="Corsair Keyboards and Mice Daemon"
 pidfile="/dev/input/ckb0/pid"
-logfile="/var/log/ckb-next-daemon.log"
-
-start() {
-	ebegin "Starting Corsair Keyboards and Mice Driver"
-	start-stop-daemon --start --exec "${command}" --pidfile "${pidfile}" --background \
-		--stdout "${logfile}" --stderr "${logfile}"
-	eend $?
-}
-
-stop() {
-	ebegin "Stopping Corsair Keyboards and Mice Driver"
-	start-stop-daemon --stop --exec "${command}" --pidfile "${pidfile}"
-	eend $?
-}
-
-reload() {
-	stop
-	sleep 0.1
-	start
-}
+logfile="/var/log/${RC_SVCNAME}.log"
+start_stop_daemon_args+="--background --stdout ${logfile} --stderr ${logfile}"