fix regenconf

conf/dnsmasq_regenconf_hook

@@ -16,13 +16,15 @@ pending_conf=$4/../dnsmasq
 dnsmasq_dir="${pending_conf}/etc/dnsmasq.d"
 mkdir -p "$dnsmasq_dir"
 
+main_iface=$(ip route | grep --max-count=1 default | awk '{print $5;}')
+
 cp -a "/etc/.pihole/advanced/01-pihole.conf" "$dnsmasq_dir/"
 
 ynh_replace_string --match_string="@DNS1@" --replace_string="" --target_file="$dnsmasq_dir/01-pihole.conf"
 ynh_replace_string --match_string="@DNS2@" --replace_string="" --target_file="$dnsmasq_dir/01-pihole.conf"
 ynh_replace_string --match_string="^no-resolv" --replace_string="#no-resolv" --target_file="$dnsmasq_dir/01-pihole.conf"
 ynh_replace_string --match_string="@INT@" --replace_string="$main_iface" --target_file="$dnsmasq_dir/01-pihole.conf"
-ynh_replace_string --match_string="@cache-size@" --replace_string="1000" --target_file="$dnsmasq_dir/01-pihole.conf"
+ynh_replace_string --match_string="@CACHE_SIZE@" --replace_string="1000" --target_file="$dnsmasq_dir/01-pihole.conf"
 query_logging=$(ynh_app_setting_get --app=$app --key=query_logging)
 if [ "$query_logging" = "true" ]; then
     ynh_replace_string --match_string="^#log-queries" --replace_string="log-queries" --target_file="$dnsmasq_dir/01-pihole.conf"
@@ -48,7 +50,6 @@ if [ $enable_dhcp -eq 1 ]
 then
 
     # Get the default network interface
-    main_iface=$(ip route | grep --max-count=1 default | awk '{print $5;}')
     # Find the IP associated to the network interface
     localipv4=$(ip address | grep "${main_iface}\$" | awk '{print $2;}' | cut -d/ -f1)