diff --git a/core/modules/tracker/tracker.module b/core/modules/tracker/tracker.module
index a5887f2..a7706ce 100644
--- a/core/modules/tracker/tracker.module
+++ b/core/modules/tracker/tracker.module
@@ -165,7 +165,8 @@ function tracker_cron() {
  * @see tracker_menu()
  */
 function _tracker_myrecent_access($account) {
-  // This path is only allowed for authenticated users looking at their own content.
+  // This path is only allowed for authenticated users looking at their own
+  // content.
   return $account->uid && ($GLOBALS['user']->uid == $account->uid) && user_access('access content');
 }
 
@@ -258,11 +259,11 @@ function tracker_comment_delete($comment) {
 /**
  * Updates indexing tables when a node is added, updated, or commented on.
  *
- * @param $nid
+ * @param int $nid
  *   A node ID.
- * @param $uid
+ * @param int $uid
  *   The node or comment author.
- * @param $changed
+ * @param int $changed
  *   The node updated timestamp or comment timestamp.
  */
 function _tracker_add($nid, $uid, $changed) {
@@ -297,12 +298,12 @@ function _tracker_add($nid, $uid, $changed) {
 /**
  * Determines the max timestamp between $node->changed and the last comment.
  *
- * @param $nid
+ * @param int $nid
  *   A node ID.
  *
- * @return
- *  The $node->changed timestamp, or most recent comment timestamp, whichever
- *  is the greatest.
+ * @return int
+ *   The $node->changed timestamp, or most recent comment timestamp, whichever
+ *   is the greatest.
  */
 function _tracker_calculate_changed($nid) {
   $changed = db_query('SELECT changed FROM {node} WHERE nid = :nid', array(':nid' => $nid), array('target' => 'slave'))->fetchField();
@@ -319,19 +320,19 @@ function _tracker_calculate_changed($nid) {
 /**
  * Cleans up indexed data when nodes or comments are removed.
  *
- * @param $nid
- *  The node ID.
- * @param $uid
+ * @param int $nid
+ *   The node ID.
+ * @param int $uid
  *   The author of the node or comment.
- * @param $changed
+ * @param int $changed
  *   The last changed timestamp of the node.
  */
 function _tracker_remove($nid, $uid = NULL, $changed = NULL) {
   $node = db_query('SELECT nid, status, uid, changed FROM {node} WHERE nid = :nid', array(':nid' => $nid))->fetchObject();
 
   // The user only keeps his or her subscription if both of the following are true:
-  //   (1) The node exists.
-  //   (2) The user is either the node author or has commented on the node.
+  // - The node exists.
+  // - The user is either the node author or has commented on the node.
   $keep_subscription = FALSE;
 
   if ($node) {
@@ -357,19 +358,17 @@ function _tracker_remove($nid, $uid = NULL, $changed = NULL) {
     }
 
     // Now we need to update the (possibly) changed timestamps for other users
-    // and the node itself.
-    // We only need to do this if the removed item has a timestamp that equals
-    // or exceeds the listed changed timestamp for the node.
+    // and the node itself. We only need to do this if the removed item has a
+    // timestamp that equals or exceeds the listed changed timestamp for the
+    // node.
     $tracker_node = db_query('SELECT nid, changed FROM {tracker_node} WHERE nid = :nid', array(':nid' => $nid))->fetchObject();
     if ($tracker_node && $changed >= $tracker_node->changed) {
       // If we're here, the item being removed is *possibly* the item that
-      // established the node's changed timestamp.
-
-      // We just have to recalculate things from scratch.
+      // established the node's changed timestamp. We just have to recalculate
+      // things from scratch.
       $changed = _tracker_calculate_changed($nid);
 
-      // And then we push the out the new changed timestamp to our denormalized
-      // tables.
+      // Then, push out the new, changed timestamp to the denormalized tables.
       db_update('tracker_node')
         ->fields(array(
           'changed' => $changed,
diff --git a/core/modules/tracker/tracker.pages.inc b/core/modules/tracker/tracker.pages.inc
index 30583be..16df623 100644
--- a/core/modules/tracker/tracker.pages.inc
+++ b/core/modules/tracker/tracker.pages.inc
@@ -68,7 +68,9 @@ function tracker_page($account = NULL, $set_title = FALSE) {
 
       $row = array(
         'type' => check_plain(node_type_get_name($node->type)),
-        'title' => array('data' => l($node->title, 'node/' . $node->nid) . ' ' . theme('mark', array('type' => node_mark($node->nid, $node->changed)))),
+        'title' => array(
+          'data' => l($node->title, 'node/' . $node->nid) . ' ' . theme('mark', array('type' => node_mark($node->nid, $node->changed))),
+        ),
         'author' => array('data' => theme('username', array('account' => $node))),
         'replies' => array('class' => array('replies'), 'data' => $comments),
         'last updated' => array('data' => t('!time ago', array('!time' => format_interval(REQUEST_TIME - $node->last_activity)))),
@@ -116,7 +118,13 @@ function tracker_page($account = NULL, $set_title = FALSE) {
 
   $page['tracker'] = array(
     '#rows' => $rows,
-    '#header' => array(t('Type'), t('Title'), t('Author'), t('Replies'), t('Last updated')),
+    '#header' => array(
+      t('Type'),
+      t('Title'),
+      t('Author'),
+      t('Replies'),
+      t('Last updated'),
+    ),
     '#theme' => 'table',
     '#empty' => t('No content available.'),
   );