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/ACKS b/Misc/ACKS
index 72b18c9..26e5f12 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -343,6 +343,7 @@
 Flemming Kjær Jensen
 Jiba
 Orjan Johansen
+Fredrik Johansson
 Gregory K. Johnson
 Simon Johnston
 Evan Jones