miniupnpd.conf: Update the address of a STUN-server

See: https://stunprotocol.org/

Also: Adding more newlines for better readability.

miniupnpd/miniupnpd.conf

@@ -1,14 +1,17 @@
 # WAN network interface
 #ext_ifname=eth1
 #ext_ifname=xl1
+
 # if the WAN network interface for IPv6 is different than for IPv4,
 # set ext_ifname6
 #ext_ifname6=eth2
+
 # If the WAN interface has several IP addresses, you
 # can specify the one to use below.
 # Setting ext_ip is also useful in double NAT setup, you can declare here
 # the public IP address.
 #ext_ip=
+
 # WAN interface must have public IP address. Otherwise it is behind NAT
 # and port forwarding is impossible. In some cases WAN interface can be
 # behind unrestricted full-cone NAT 1:1 when all incoming traffic is NAT-ed and
@@ -19,13 +22,14 @@
 # to specify also external STUN server in stun_host option below.
 # This option is disabled by default.
 #ext_perform_stun=yes
+
 # Specify STUN server, either hostname or IP address
 # Some public STUN servers:
-#  stun.stunprotocol.org
+#  stunserver.stunprotocol.org
 #  stun.sipgate.net
 #  stun.xten.com
 #  stun.l.google.com (on non standard port 19302)
-#ext_stun_host=stun.stunprotocol.org
+#ext_stun_host=stunserver.stunprotocol.org
 # Specify STUN UDP port, by default it is standard port 3478.
 #ext_stun_port=3478
 
@@ -50,6 +54,7 @@
 
 # Port for HTTP (descriptions and SOAP) traffic. Set to 0 for autoselect.
 #http_port=0
+
 # Port for HTTPS. Set to 0 for autoselect (default)
 #https_port=0