title: Field name does not start with underscore - sonar issue
body: <p>We are following Hungarian notation to declare private variables as below.</p>
  
  <pre><code>private IRepository&lt;Request&gt; _requestRepo;
  
  public RequestService(IRepository&lt;Request&gt; requestRepo)
  {
      _requestRepo = requestRepo;
  }
  </code></pre>
  
  <p>The above code shows a sonar issue like Field name does not start with underscore. Please tell me how to declare the private variables to satisfy coding standards?</p>