Describe using a shell alias to invoke shorewall6-lite from 'shorewall6'

Signed-off-by: Tom Eastep <teastep@shorewall.net>

Shorewall-core/manpages/shorewall.xml

@@ -981,7 +981,22 @@
               <td><command>shorewall -6</command> or <command>shorewall
               -6l</command></td>
             </tr>
+
+            <tr>
+              <td><command>shorewall</command></td>
+
+              <td><command>shorewall -l</command></td>
+            </tr>
           </table>
+
+          <para>Note that when Shorewall isn't installed, the 'shorewall'
+          command behaves like shorewall-lite. The same is not true with
+          respect to Shorewall6, "shorewall6" and 'shorewall6-lite". You can
+          make 'shorewall6' behave like 'shorewallt-lite' by adding the
+          following command to root's .profile file (or to .bashrc, if root's
+          shell is bash):</para>
+
+          <programlisting>    alias shorewall6=shorewall6-lite</programlisting>
         </listitem>
       </varlistentry>
 

docs/Shorewall-Lite.xml

@@ -547,6 +547,18 @@
             <command>remote-reload</command> command (e.g., <command>shorewall
             remote-reload -c gateway</command>).</para>
           </listitem>
+
+          <listitem>
+            <para>Shorewall6-lite works with Shorewall6 in the same way that
+            Shorewall-lite works with Shorewall. Beginning with Shorewall
+            5.0.0, running 'shorewall &lt;cmd&gt;" is the same as running
+            "shorewall-lite &lt;cmd&gt;" when Shorewall is not installed.. To
+            continue to use the "shorewall6" command after switching to
+            Shoerwall6-lite, you need to add this to your .profile (or to
+            .bashrc if root's shell is bash):</para>
+
+            <programlisting>    alias shorewall6=shorewall6-lite</programlisting>
+          </listitem>
         </orderedlist>
       </section>
     </section>