title: curl: (48) An unknown option was passed in to libcurl
body: <p>This is really frustrating. I keep getting this error when trying to run a standard curl command:</p>
  
  <pre><code>curl --url https://install.meteor.com | sh
  curl: (48) An unknown option was passed in to libcurl
  </code></pre>
  
  <p>Anyone know how to fix it?</p>