Use morgan(format, options) function signature.

lib/server/main.js

@@ -107,14 +107,14 @@ var main = function (args, readyCb, doneCb) {
   // not "Gb"). Using 1GB because..., well because it's arbitrary and 1GB is sufficiently large for 99.99%
   // of testing scenarios while still providing an upperbounds to reduce the odds of squirrelliness.
   rest.use(bodyParser.json({limit: '1gb'}));
-  rest.use(morgan({format: function (tokens, req, res) {
+  rest.use(morgan(function (tokens, req, res) {
     // morgan output is redirected straight to winston
     var data = '';
     try {
       if (req.body) data = JSON.stringify(req.body).substring(0, 1000);
     } catch (ign) {}
     logger.info(requestStartLoggingFormat(tokens, req, res), data.grey);
-  }, immediate: true}));
+  }, {immediate: true}));
 
   rest.use(methodOverride());