[PATCH 06 of 10 py3] bundle2: use modern Python division

[Augie Fackler]

# HG changeset patch
# User Augie Fackler <augie at google.com>
# Date 1500909456 14400
#      Mon Jul 24 11:17:36 2017 -0400
# Node ID 4c1f4e109bf90a8352a25a6b45a80fabcac6306b
# Parent  7d68e38eb849015f034a0cbd66990777e635e8f6
bundle2: use modern Python division

This was failing on Python 3 because the / was returning a float,
which was then making the __mul__ on a bytes sad.

diff --git a/mercurial/bundle2.py b/mercurial/bundle2.py
--- a/mercurial/bundle2.py
+++ b/mercurial/bundle2.py
@@ -145,7 +145,7 @@ future, dropping the stream may become a
 preserve.
 """
 
-from __future__ import absolute_import
+from __future__ import absolute_import, division
 
 import errno
 import re
@@ -994,7 +994,7 @@ class bundlepart(object):
         for key, value in advpar:
             parsizes.append(len(key))
             parsizes.append(len(value))
-        paramsizes = _pack(_makefpartparamsizes(len(parsizes) / 2), *parsizes)
+        paramsizes = _pack(_makefpartparamsizes(len(parsizes) // 2), *parsizes)
         header.append(paramsizes)
         # key, value
         for key, value in manpar: