Index: wp-admin/includes/revision.php
===================================================================
--- wp-admin/includes/revision.php	(revision 25353)
+++ wp-admin/includes/revision.php	(working copy)
@@ -11,12 +11,12 @@
  *
  * @since 3.6.0
  *
- * @param object $post The post object.
- * @param int $compare_from The revision id to compare from.
- * @param int $compare_to The revision id to come to.
+ * @param object|int $post         The post object. Also accepts a post ID.
+ * @param int        $compare_from The revision id to compare from.
+ * @param int        $compare_to   The revision id to come to.
  *
  * @return array|bool Associative array of a post's revisioned fields and their diffs.
- * 	Or, false on failure.
+ * 	                  Or, false on failure.
  */
 function wp_get_revision_ui_diff( $post, $compare_from, $compare_to ) {
 	if ( ! $post = get_post( $post ) )
@@ -85,9 +85,9 @@
  *
  * @since 3.6.0
  *
- * @param object $post The post object.
+ * @param object|int $post          The post object. Also accepts a post ID.
  * @param int $selected_revision_id The selected revision id.
- * @param int $from (optional) The revision id to compare from.
+ * @param int $from                 Optional. The revision id to compare from.
  *
  * @return array An associative array of revision data and related settings.
  */