title: Set Multiple Environmental Variables On Invocation of Rake Task
body: <p>I can invoke a Rake task and set a single environmental variable like this:</p>
  
  <pre><code>$ ONE=1 rake temp:both
  </code></pre>
  
  <p>But how do I set two environmental variables?</p>
  
  <p>This doesn't work:</p>
  
  <pre><code> $ ONE=1 TWO=2 rake temp:both 
  </code></pre>
  
  <p>This works, but is confusing to read:</p>
  
  <pre><code>$ ONE=1 rake temp:both TWO=2 
  </code></pre>
  
  <p><strong>How can I pass more than one env before the call to <code>rake</code>?</strong></p>