syntax cleanup

tasks/server.js

@@ -3,6 +3,7 @@ module.exports = function (grunt) {
     var done = this.async();
     var DevServer = require('../test/utils/dev_server');
     var server = new DevServer();
+
     server.listen(8000).then(function () {
       console.log('visit http://localhost:8000');
       if (keepalive !== 'keepalive') done();