<?php // Replace this: ?>

<?php print $content; ?>

<?php // With this: ?>

<?php if (isset($block->title_link)): ?>
  <?php print l($content, $block->title_link, array('attributes' => array('title' => $block->title_link_title), 'html' => TRUE)); ?>
<?php else: ?>
  <?php print $content; ?>
<?php endif; ?>