title: Sinatra: three logs
body: <p>I'm using a very simple Sinatra app that works well. However, every log message is repeated three times. I can bring that down to two by disabling the Sinatra logging with</p>
  
  <pre><code>disable :logging
  </code></pre>
  
  <p>but I still have two. The messages are slightly different, so I gather they are coming from Rack and somewhere else in the stack too.</p>
  
  <p>How do I completely disable logging of successful web requests?</p>