Updated openstack/openstack
Project: openstack/python-openstackclient  c946192e37111aa381097256c1fd1fb91e356783
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Update URL for global hacking doc and fix typos

* related to I579e7c889f3addc2cd40bce0c584bbc70bf435e2

Change-Id: I519155d0a47564ce18a9cd930378a3c4feaa7a77