Index: wp-content/themes/twentyten/functions.php
===================================================================
--- wp-content/themes/twentyten/functions.php	(revision 17521)
+++ wp-content/themes/twentyten/functions.php	(working copy)
@@ -107,7 +107,8 @@
 	if ( ! defined( 'HEADER_TEXTCOLOR' ) )
 		define( 'HEADER_TEXTCOLOR', '' );
 
-	// No CSS, just IMG call. The %s is a placeholder for the theme template directory URI.
+	// No CSS, just IMG call. The %s is a placeholder for the theme template directory URI,
+	// %2$s is a placeholder for the stylesheet directory URI. 
 	if ( ! defined( 'HEADER_IMAGE' ) )
 		define( 'HEADER_IMAGE', '%s/images/headers/path.jpg' );
 
@@ -131,7 +132,8 @@
 
 	// ... and thus ends the changeable header business.
 
-	// Default custom headers packaged with the theme. %s is a placeholder for the theme template directory URI.
+	// Default custom headers packaged with the theme. %s is a placeholder for the theme template directory URI,
+	// %2$s is a placeholder for the stylesheet directory URI.
 	register_default_headers( array(
 		'berries' => array(
 			'url' => '%s/images/headers/berries.jpg',
