int_pow():  Repair typo when passing on to float pow (the 2nd argument was
being passed as both the 2nd and 3rd args).  Regression test will follow.
diff --git a/Objects/intobject.c b/Objects/intobject.c
index 7724760..847c74d 100644
--- a/Objects/intobject.c
+++ b/Objects/intobject.c
@@ -585,7 +585,7 @@
 				return PyLong_Type.tp_as_number->nb_power(
 					(PyObject *)v,
 					(PyObject *)w,
-					(PyObject *)w);
+					(PyObject *)z);
 			}
 		}
 	 	iw >>= 1;	/* Shift exponent down by 1 bit */