olsrd: hotplug-script: take config-file as marker for 'init-script-was-already-invoked-once' and not the pidfile: the pidfile ist not written if the daemon couldnt startup, e.g. because no interface was up yet and 'AllowNoInt' was not configured - thanks to bluse-blue for reporting this issue on a WDR4900v1

olsrd/files/olsrd.hotplug.sh

@@ -46,7 +46,7 @@ case "$ACTION" in
 	ifup)
 		# only work after the first normal startup
 		# also: no need to test, if enabled
-		[ -e '/var/run/olsrd.pid' ] && {
+		[ -e '/var/etc/olsrd.conf' ] && {
 			olsrd_interface_needs_adding "$INTERFACE" "$DEVICE" && {
 				. /etc/rc.common /etc/init.d/olsrd restart
 			}