text: #!/usr/bin/env node
  'use strict';
  
  var ArgumentParser = require('../lib/argparse').ArgumentParser;
  var parser = new ArgumentParser({
    version: '0.0.1',
    addHelp: true,
    description: 'Argparse examples: choice'
  });
  
  parser.addArgument([ 'foo' ], { choices: 'abc' });
  
  parser.printHelp();
  console.log('-----------');
  
  var args;
  args = parser.parseArgs([ 'c' ]);
  console.dir(args);
  console.log('-----------');
  parser.parseArgs([ 'X' ]);
  console.dir(args);
  
  