title: run-program in another directory
body: <p>SBCL's <code>sb-ext:run-program</code> has an argument called <code>directory</code>. When you pass it, the program you specify will be run in that directory, rather than your <code>cwd</code>.</p>
  
  <p>Is there any way of getting the same effect using <code>ccl:run-program</code>?</p>