osInfo() added FQDN

docs/os.html

@@ -145,6 +145,16 @@
                     <td>X</td>
                     <td>same as os.hostname()</td>
                   </tr>
+                  <tr>
+                    <td></td>
+                    <td>fqdn</td>
+                    <td>X</td>
+                    <td>X</td>
+                    <td>X</td>
+                    <td>X</td>
+                    <td>X</td>
+                    <td>fully qualfied domain name</td>
+                  </tr>
                   <tr>
                     <td></td>
                     <td>codepage</td>
@@ -220,6 +230,7 @@ si.osInfo().then(data => console.log(data));</code></pre class="example">
   kernel: '19.3.0',
   arch: 'x64',
   hostname: 'hostname.local',
+  fqdn: 'hostname.local',
   codepage: 'UTF-8',
   logofile: 'apple',
   serial: 'XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX',