'Stem words' links to algorithm broken

Hi,

The 'algorithm' and 'exclusions' links are broken if you go to the settings form on the 'Stem Words' processor settings form. The links are highlighted in the screenshot attached.

The links have been passed to the t() function with @ when they have been written with !:

$args = array(
      '!algorithm' => url('https://github.com/markfullmer/porter2'),
      '!exclusions' => url('https://github.com/markfullmer/porter2#user-content-custom-exclusions'),
    );
    $form += array(
      'help' => array(
        '#markup' => '<p>' . t('Optionally, provide an exclusion list to override the stemmer algorithm. Read about the <a href="@algorithm">algorithm</a> and <a href="@exclusions">exclusions</a>.', $args) . '</p>',
      ),

Patch to follow to run these through l() instaed of building the link and to remove the exclusions link as it no longer exists.

Cheers

Tom