Updated from global requirements

Change-Id: I673f91955be4dfde1eea54b48cc7e9a554447fcd

Author: OpenStack Proposal Bot

requirements.txt

@@ -7,7 +7,7 @@ six>=1.9.0 # MIT
 Babel>=2.3.4 # BSD
 cliff>=2.3.0 # Apache-2.0
 keystoneauth1>=2.16.0 # Apache-2.0
-openstacksdk>=0.9.10 # Apache-2.0
+openstacksdk!=0.9.11,>=0.9.10 # Apache-2.0
 osc-lib>=1.2.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.utils>=3.18.0 # Apache-2.0