Tidy in turnserver.conf rfc5780 option

examples/etc/turnserver.conf

@@ -761,11 +761,15 @@
 #no-tlsv1_2
 
 # Disable RFC5780 (NAT behavior discovery).
-#Originally, if there are more than one listener address from the same
-#address family, then by default the NAT behavior discovery feature enabled.
-#This option disables the original behavior, because the NAT behavior discovery
-#adds extra attributes to response, and this increase the possibility of
-#an amplification attack.
-#Strongly encouraged to use this option to decrease gain factor in STUN binding responses.
-#
-no-rfc5780
+#
+# Originally, if there are more than one listener address from the same
+# address family, then by default the NAT behavior discovery feature enabled.
+# This option disables the original behavior, because the NAT behavior
+# discovery adds extra attributes to response, and this increase the
+# possibility of an amplification attack.
+#
+# Strongly encouraged to use this option to decrease gain factor in STUN
+# binding responses.
+#
+no-rfc5780
+