fix code style

test/ignore.paths.spec.ts

@@ -2,8 +2,7 @@ import * as path from 'path';
 import { expect } from 'chai';
 import * as request from 'supertest';
 import { createApp } from './common/app';
-
-const packageJson = require('../package.json');
+import * as packageJson from '../package.json';
 
 describe(packageJson.name, () => {
   let app = null;