Issue #3439: add bit_length method to int and long.
Thanks Fredrik Johansson and Victor Stinner for code,
Raymond Hettinger for review.
diff --git a/Misc/NEWS b/Misc/NEWS
index 9e499ae..09c3ceb 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,8 @@
 Core and Builtins
 -----------------
 
+- Issue #3439: Add a bit_length method to int and long.
+
 - Issue #2183: Simplify and optimize bytecode for list comprehensions.
   Original patch by Neal Norwitz.