Trivial Fix

Add a space in the quota error message

Change-Id: I159708b42e86f6b02f8733103a687561d550f650

Author: reedip

openstackclient/common/quota.py

@@ -165,7 +165,7 @@ def take_action(self, parsed_args):
                     **volume_kwargs)
             if network_kwargs:
                 sys.stderr.write("Network quotas are ignored since quota class"
-                                 "is not supported.")
+                                 " is not supported.")
         else:
             project = utils.find_resource(
                 identity_client.projects,