Adding trailing slash to mountpoint

Author: cwilson21

tests/unit/overrides_test.yaml

@@ -57,7 +57,7 @@ tests:
           path: spec.template.spec.containers[0].volumeMounts
           content:
             name: st2-overrides-vol
-            mountPath: /opt/stackstorm/overrides
+            mountPath: /opt/stackstorm/overrides/
         documentIndex: 3 # register_content
 
       - contains: *overrides_mnt