presence_lib no longer defines extended_status()

and we weren't using that function here anyway, so require(..., 'node_status')
instead.

webv4/root/api/system.ssjs

 require('sbbsdefs.js', 'SYS_CLOSED');
 require('nodedefs.js', 'NODE_WFC');
-require("presence_lib.js", 'extended_status');
+require("presence_lib.js", 'node_status');
 var settings = load('modopts.js', 'web') || { web_directory: '../webv4' };
 
 load(settings.web_directory + '/lib/init.js');
@@ -119,4 +119,4 @@ http_reply.header['Content-Type'] = 'application/json';
 http_reply.header['Content-Length'] = reply.length;
 write(reply);
 
-reply = undefined;
\ No newline at end of file
+reply = undefined;