diff -r edf69ca31f64 Modules/_elementtree.c
--- a/Modules/_elementtree.c	Tue Apr 02 16:30:33 2013 +0200
+++ b/Modules/_elementtree.c	Mon Apr 15 14:46:57 2013 +0200
@@ -312,7 +312,9 @@
  * This is required by some constructors/functions in this module that can
  * either accept attrib as a keyword argument or all attributes splashed
  * directly into *kwds.
- * If there is no 'attrib' keyword, return an empty dict.
+ *
+ * Returns a dictionary with the content of kwds merged into the content of
+ * attrib. If there is no attrib keyword, returns a copy of kwds.
  */
 static PyObject*
 get_attrib_from_keywords(PyObject *kwds)