Minor code comment correction

[iamrafaelmelo]

Description:
The comment was hampering the progress of the code.

From:

// Render HTML form which POSTs to /bar with two hidden input fields for the
// name and value:
// <input type="hidden" name="<?= $nameKey ?>" value="<?= $name ?>">
// <input type="hidden" name="<?= $valueKey ?>" value="<?= $value ?>">

To:

/*
   Render HTML form which POSTs to /bar with two hidden input fields for the
   name and value:
   <input type="hidden" name="<?= $nameKey ?>" value="<?= $name ?>">
   <input type="hidden" name="<?= $valueKey ?>" value="<?= $value ?>">
*/