olsrd log spam with default configuration

olsrd/olsrd6 default configuration when the package is installed is to run on wlan network. There are two problems with this:

1- If wlan does not exist it does not end up in /var/etc/olsrd.conf and /var/etc/olsrd6.conf and thus that configuration has no networks and the daemons exits immediately then are restarted by procd, resulting in a ton of log spam.

I fixed it by adding a check in /etc/init.d/olsrd and /etc/init.d/olsrd6 in my system for the number of interfaces in the generated /var/etc configs:

...
start_service() {
olsrd_generate_config $OLSRD
[ "$INTERFACES_COUNT" -le 0 ] && return 1
...

These files are here in the routing feed:

feeds/routing/olsrd/files/olsrd4.init
feeds/routing/olsrd/files/olsrd6.init

2- Starting the daemons with a default configuration on an interface is wrong. olsrd is complex and it is OK to force the user to do some actual configuration in addition to installing the package. olsrd daemons shound be disabled by default.

Start with feeds/routing/olsrd/files/olsrd4.init and feeds/routing/olsrd/files/olsrd6.init, then inspect how the generated /var/etc/olsrd.conf and /var/etc/olsrd6.conf determine the interface count. Verify the daemons do not repeatedly restart when no wlan interface is configured, and review the requested default-disabled behavior for both services.