title: Setting system properties with "sbt run"
body: <p>I'm using a pretty recent version of SBT (seems to be hard to figure out what the version is). I want to pass system properties to my application with <code>sbt run</code> as follows:</p>
  
  <pre><code>sbt -Dmyprop=x run
  </code></pre>
  
  <p>How could I do that?</p>