Updated openstack/openstack
Project: openstack/cinder  d8dba90f5be90b8cb7db564098492d0075de8272
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Update HACKING.rst with regard to mock usage

Add a sentence about using mock rather than mox for unit tests.

Change-Id: If3c175d986f3ebed6d949df5c473e0cf9177ef6e
Updated openstack/openstack
Project: openstack/python-keystoneclient  2f7430344c43b759f054cca43351776f883a897b
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Sort items in requirement related files

Update two requirement related files with command: sort-i {filename}.
This make these files more readable, can find the libraries easily.

Change-Id: I5969ef37d02814bf2c09761f133464c5a02f0d6b