commit dddbf2965655ebf3a2db0cf721c277920e18fadb
Author: Jay Callicott <jrcallicott@gmail.com>
Date:   Sat Jun 8 22:11:29 2013 -0500

    Removed preprocess

diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 2c3aaec..076caea 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -3243,7 +3243,6 @@ function drupal_common_theme() {
     ),
     'task_list' => array(
       'variables' => array('items' => NULL, 'active' => NULL),
-      'preprocess functions' => array('template_preprocess_task_list'),
       'template' => 'task-list',
     ),
     'authorize_message' => array(