Coder doesn't understand PHP short tags in template file.

Given the following code:

<script>
  var minAge = <?= variable_get('foo-min', '13'); // @fixme: Move into Drupal JS settings. ?>
  var maxAge = <?= variable_get('foo-max', '13'); // @fixme: Move into Drupal JS settings. ?>
</script>

The Coder "fixes" it into:

<script>
// @fixme: Move into Drupal JS settings.   var minAge = <?= variable_get('foo-min', '13');
?>
// @fixme: Move into Drupal JS settings.   var maxAge = <?= variable_get('foo-max', '13');
?>
</script>

which is wrong.

Testing command: phpcbf --standard=Drupal foo.tpl.php

I assuming Coder doesn't understand the syntax used here correctly.