title: Angular Cli 6.2.x branch Source, npm install error 'npm audit fix'
body: <p>I got angular-cli source code from git to customize cli options. but npm install make message like this.</p>
  
  <pre><code>npm install
  npm WARN deprecated spdx@0.5.2: see spdx-expression-parse, spdx-satisfies, &amp;c.
  
  &gt; husky@0.14.3 install D:\dev\git\personal\angularCli\node_modules\husky
  &gt; node ./bin/install.js
  
  husky
  setting up Git hooks
  done
  
  npm notice created a lockfile as package-lock.json. You should commit this file.
  added 369 packages from 415 contributors and audited 1352 packages in 25.428s
  found 1 moderate severity vulnerability
  run `npm audit fix` to fix them, or `npm audit` for details
  </code></pre>
  
  <p>I just tried npm install in angular-cli root folder to edit code and build angular cli. </p>
  
  <p>I tried npm install again and again. but got same result.
  is this problem? if it is problem, how can i fix it?</p>
  
  <p>node version: 8.11.4
  npm versino: 6.1.0
  os: window 10</p>