Donation module sample code produces odd output in block

Part of the sample code (in the online help) at /admin/help/lm_paypal_donations includes:

  // The amount is a multi element array so a select will be used. Note if one
  //   of the elements is itself an array that will be the default selection
  // The final two parameters are an alternative button (here we use the default)
  //   and a replacement label before the amount
  print 'We would really like a $10, or more, donation ' .
    lm_paypal_donate(array(5,array(10),15), 'USD', 'donation to example.com', '', 'Donation') .'<br>';

But this (default-value) functionality has been lost (see screenshot)