Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError for
negative arguments.  Previously, it raised TypeError.

Thanks Lisandro Dalcin.
diff --git a/Misc/ACKS b/Misc/ACKS
index 48d312e..648a888 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -153,6 +153,7 @@
 Drew Csillag
 John Cugini
 Tom Culliton
+Lisandro Dalcin
 Andrew Dalke
 Lars Damerow
 Eric Daniel