Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 9921)
+++ wp-includes/functions.php	(working copy)
@@ -1127,7 +1127,7 @@
  * @return string URL encoded string
  */
 function build_query( $data ) {
-	return _http_build_query( $data, null, '&', '', false );
+	return _http_build_query( $data, null, '&', '', false );
 }
 
 /**