[trac4273] Minor typos in port description

doc/guide/dhcp4-srv.xml

@@ -2437,7 +2437,7 @@ It is merely echoed by the server
       The <command>dhcp4o6-port</command> global parameter specifies
       the first of the two consecutive ports of the UDP sockets used
       for the communication between the DHCPv6 and DHCPv4 servers
-      (the DHCPv4 server is bound to ::1 on the port 1 and connected
+      (the DHCPv4 server is bound to ::1 on port + 1 and connected
       to ::1 on port).
       </para>
       <para>

doc/guide/dhcp6-srv.xml

@@ -2200,7 +2200,7 @@ should include options from the isc option space:
       <command>dhcp4o6-port</command> which specifies the first of the
       two consecutive ports of the UDP sockets used for the communication
       between the DHCPv6 and DHCPv4 servers (the DHCPv6 server is bound
-      to ::1 on the port and connected to ::1 on port + 1).
+      to ::1 on port and connected to ::1 on port + 1).
       </para>
       <para>
       Two other configuration entries are in general required: unicast traffic