Fix a misspelling in a comment
Fix a misspelling in a comment

Change-Id: If049cef6def1249fd0f70e16385aa7a4167edbde

Mercador/python-keystoneclient,sdpp/python-keystoneclient,ging/python-keystoneclient,jamielennox/python-keystoneclient,sdpp/python-keystoneclient,darren-wang/ksc,alexpilotti/python-keystoneclient,jamielennox/python-keystoneclient,magic0704/python-keystoneclient,magic0704/python-keystoneclient,Mercador/python-keystoneclient,klmitch/python-keystoneclient,jamielennox/python-keystoneclient,alexpilotti/python-keystoneclient,klmitch/python-keystoneclient,ging/python-keystoneclient,darren-wang/ksc