[TrivialFix] Remove errant comma in capabilities policies
Currently, the initialization of CAPABILITIES_POLICY is supposed
to be a string, but due to the comma at the end of the string literal
the type of CAPABILITIES_POLICY is actually a tuple, which is a bug.
@@ -18,7 +18,7 @@ from oslo_policy import policy
from cinder.policies import base
-CAPABILITIES_POLICY = "volume_extension:capabilities",
+CAPABILITIES_POLICY = "volume_extension:capabilities"
capabilities_policies = [
