Fix the hardware address in LINKTYPE_NFLOG.html as well.

Based on additional comments by John Thacker in pull request #48.

[skip ci]

Author: infrastation

htmlsrc/linktypes/LINKTYPE_NFLOG.html

@@ -115,12 +115,17 @@ <h3 class="subtitle">Description</h3>
 |           (2 Octets)          |
 +-------------------------------+
 |            Address            |
-| (8 Octets, including padding) |
+|           (8 Octets)          |
 +-------------------------------+
 </pre>
 <p>
 All 32-bit integral values, and all multi-octet integral values in
-structures listed above, are in big-endian byte order.
+structures listed above, are in big-endian byte order.  In the hardware
+address structure the <code>Address</code> field contains the first 8
+octets of a hardware address if the address length is greater than 8,
+otherwise the complete hardware address followed by any trailing padding
+if required.
+</p>
             </div>
           </div>
           <!-- End of LINKTYPE_NFLOG section -->

linktypes/LINKTYPE_NFLOG.html

@@ -159,12 +159,17 @@ <h3 class="subtitle">Description</h3>
 |           (2 Octets)          |
 +-------------------------------+
 |            Address            |
-| (8 Octets, including padding) |
+|           (8 Octets)          |
 +-------------------------------+
 </pre>
 <p>
 All 32-bit integral values, and all multi-octet integral values in
-structures listed above, are in big-endian byte order.
+structures listed above, are in big-endian byte order.  In the hardware
+address structure the <code>Address</code> field contains the first 8
+octets of a hardware address if the address length is greater than 8,
+otherwise the complete hardware address followed by any trailing padding
+if required.
+</p>
             </div>
           </div>
           <!-- End of LINKTYPE_NFLOG section -->