anchor.diff:  }
   // ... run App's business logic
   ----
  -See also <<Parsing>> and <<Runnable and Callable>> for how picocli can help reduce boilerplate code.
  +See also the chapter link:http://picocli.info/#_printing_help_automatically[Printing Help Automatically] of the user manual.
   
   == Version Help
   === Static Version Information
  
positive.code: ----
  String[] args = { "-c", "--file", "result.tar", "file1.txt", "file2.txt" };
  Tar tar = new Tar();
  new CommandLine(tar).parse(args);
  
  assert !tar.helpRequested;
  assert  tar.create;
  
negative.code: [source,java]
  ----
  CommandLine commandLine = new CommandLine(new App());
  commandLine.parseArgs(args);
  if (commandLine.isUsageHelpRequested()) {
     commandLine.usage(System.out);
     return;
  