Updated openstack/openstack
Project: openstack/python-keystoneclient  570a9dc22dad6c246372f273bd6db23342752c3a

fixed typos found by RETF rules

rules are avaialble at https://en.wikipedia.org/wiki/Wikipedia:AutoWikiBrowser/Typos

Change-Id: I67fb3e0d02c931cb7e605ac74ea8272956afa8e1