Updated openstack/openstack
Project: openstack/glance_store  da40c9f0a78fdee6121df16bbd981ea9e2013c35

rbd: fix chunk size units

A typo used XOR instead of python's operator for exponentiation in the
migration to glance_store (5e8eb74438423a4d6134af964fd522bf0ca78429).
Change it back to the correct operator.

Change-Id: I80ba27137e56b3b7aa5ef232e4d770fd363dd3c2
Closes-Bug: 1370247