title: How to disable Redis log during command execution
body: <p>When I am running Symfony command (with <code>bin/console</code>) I'm getting Redis logs in the output.</p>
  
  <p>For example:</p>
  
  <pre><code>$ bin/console doctrine:generate:entities AppBundle:Item
  
  [2017-10-18 13:26:47] cache.WARNING: Failed to save key "{key}" ({type}) {"key":"%5BAppBundle%5CEntity%5CItem%40%5BAnnot%5D%5D%5B1%5D","type":"array","exception":null}
  [2017-10-18 13:26:47] cache.WARNING: Failed to save key "{key}" ({type}) {"key":"%5B%5BC%5DAppBundle%5CEntity%5CItem%24property_1%40%5BAnnot%5D%5D%5B1%5D","type":"integer","exception":null}
  [2017-10-18 13:26:47] cache.WARNING: Failed to save key "{key}" ({type}){"key":"%5B%5BC%5DAppBundle%5CEntity%5CItem%24property_2%40%5BAnnot%5D%5D%5B1%5D","type":"integer","exception":null}
  Generating entity "AppBundle\Entity\Item"
  [2017-10-18 13:26:47] cache.WARNING: Failed to save key "{key}" ({type}) {"key":"%5B%5BC%5DAppBundle%5CEntity%5CItem%24property_3%40%5BAnnot%5D%5D%5B1%5D","type":"integer","exception":null}
  ... and at least 100 more
  
   &gt; backing up Item.php to Item.php~
   &gt; generating AppBundle\Entity\Item
  </code></pre>
  
  <p>This makes the actual output of commands hard to read. </p>