Index: wp-includes/post-template.php
===================================================================
--- wp-includes/post-template.php	(revision 5743)
+++ wp-includes/post-template.php	(working copy)
@@ -283,7 +283,9 @@
 		'date_format' => get_option('date_format'), 
 		'child_of' => 0, 'exclude' => '', 
 		'title_li' => __('Pages'), 'echo' => 1, 
-		'authors' => '', 'sort_column' => 'menu_order, post_title'
+		'authors' => '', 'sort_column' => 'menu_order, post_title',
+		'sort_order' => 'ASC', 'hierarchical' => 1, 'include' => '',
+		'meta_key' => '', 'meta_value' => '' 
 	);
 
 	$r = wp_parse_args( $args, $defaults );