title: Apache Commons CLI muliple argument value names in the -help option
body: <p>I use Apache Commons CLI for parsing command line arguments.</p>
  
  <p>I am looking for a way to display multiple argument value names in the help.
  Here is an example for one argument of the option "startimport":</p>
  
  <pre><code>Option startimport = OptionBuilder
                  .withArgName("environment")
                  .hasArg()
                  .withDescription(
                          "Description")
                  .create("startimport");
  </code></pre>
  
  <p>When I use -help it prints out:</p>
  
  <pre><code>-startimport &lt;environment&gt;                    Description
  </code></pre>
  
  <p>Thatfs fine. But what if I want to use two arguments?</p>
  
  <pre><code>Option startimport = OptionBuilder
                  .withArgName("firstArg secondArg")
                  .hasArgs(2)
                  .withDescription("Description")
                  .create("startimport ");
  </code></pre>
  
  <p>Parsing the two arguments is not the problem but I want the following output in the "-help":</p>
  
  <pre><code>startimport &lt;firstArg&gt; &lt;secondArg&gt;                    Description
  </code></pre>
  
  <p>But currently I would just get: </p>
  
  <pre><code>startimport &lt;firstArg secondArg&gt;                    Description
  </code></pre>
  
  <p>Is there a proper solution for that problem?</p>