title: Problems with ${(z)var}
body: <p>Code:</p>
  
  <pre><code>HOST=localhost
  PORT=1234
  RSYNCCMD="rsync -avP -e \"ssh -p $PORT\""
  
  ${(z)RSYNCCMD} root@$HOST:"\"/foo\"" /bar
  </code></pre>
  
  <p>Output:</p>
  
  <pre><code>rsync: Failed to exec ssh -p 1234: No such file or directory (2)
  ...
  </code></pre>
  
  <p>If I enter the same thing (<code>rsync -avP -e "ssh -p 1234" ...</code>) directly into the console, it works.</p>
  
  <p>How do I fix it?</p>