Fix linting warnings

Gruntfile.js

@@ -1,5 +1,5 @@
 'use strict';
-var LoadGruntTasks = require('load-grunt-tasks');
+var loadGruntTasks = require('load-grunt-tasks');
 
 
 module.exports = function (grunt) {
@@ -15,7 +15,7 @@ module.exports = function (grunt) {
         }
     });
 
-    LoadGruntTasks(grunt);
+    loadGruntTasks(grunt);
     grunt.registerTask('test', ['nodeunit', 'eslint']);
     grunt.registerTask('default', 'test');
 };

tasks/mochacli.js

@@ -19,11 +19,15 @@ module.exports = function (grunt) {
         if (options.files.length === 0 &&
             // Check for files matched by filesRaw or the mocha default
             grunt.file.expand(options.filesRaw || 'test/*.js').length === 0) {
-            return done();
+
+            done();
+            return;
         }
 
         mocha(options, function (error) {
             done(options.force ? true : error);
         });
+
+        return;
     });
 };

test/fixture/pass.js

@@ -2,6 +2,5 @@
 'use strict';
 
 describe('fixture', function () {
-    it('pass', function () {
-    });
+    it('pass', function () {}); // eslint-disable-line no-empty-function
 });

test/fixture/pass2.js

@@ -2,6 +2,5 @@
 'use strict';
 
 describe('fixture', function () {
-    it('pass', function () {
-    });
+    it('pass', function () {}); // eslint-disable-line no-empty-function
 });