align comment style to db.root

bind/db.localhost

@@ -1,6 +1,6 @@
-;
-;   db.localhost -- zonefile for the forward mapping of the loopback network
-;
+;;
+;;  db.localhost -- zonefile for the forward mapping of the loopback network
+;;
 
 $TTL    86400
 

bind/db.localhost.ipv4

@@ -1,6 +1,6 @@
-;
-;   db.localhost.ipv4 -- zonefile for the IPv4 reverse mapping of the loopback network
-;
+;;
+;;  db.localhost.ipv4 -- zonefile for the IPv4 reverse mapping of the loopback network
+;;
 
 $TTL    86400
 

bind/db.localhost.ipv6

@@ -1,6 +1,6 @@
-;
-;   db.localhost.ipv6 -- zonefile for the IPv6 reverse mapping of the loopback network
-;
+;;
+;;  db.localhost.ipv6 -- zonefile for the IPv6 reverse mapping of the loopback network
+;;
 
 $TTL    86400