Do not use message=msg in InvalidConfiguration

If using InvalidConfiguration(message=msg), msg will not
display properly, instead InvalidConfiguration(msg) should
be used.

Change-Id: I29b91b3db6179bfd4ffea5352f7fcf4cfb61055f
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index a2b9964..90dc7f4 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -51,7 +51,7 @@
                 raise cls.skipException(msg)
         else:
             msg = ("Invalid Cinder API version (%s)" % cls._api_version)
-            raise exceptions.InvalidConfiguration(message=msg)
+            raise exceptions.InvalidConfiguration(msg)
 
     @classmethod
     def setup_credentials(cls):