Add wpad vulnerability fix as suggested by dnsmasq.conf.example

Signed-off-by: DL6ER <dl6er@dl6er.de>

advanced/01-pihole.conf

@@ -46,3 +46,8 @@ log-facility=/var/log/pihole.log
 local-ttl=2
 
 log-async
+
+# If a DHCP client claims that its name is "wpad", ignore that.
+# This fixes a security hole. see CERT Vulnerability VU#598349
+dhcp-name-match=set:wpad-ignore,wpad
+dhcp-ignore-names=tag:wpad-ignore