Fixed InvalidConfiguration() exception to print correct message

Change-Id: I3723c4d256cc07a8ae931216eb247a8821a7195c
diff --git a/manila_tempest_tests/tests/scenario/manager_share.py b/manila_tempest_tests/tests/scenario/manager_share.py
index 10074b1..06bf6c2 100644
--- a/manila_tempest_tests/tests/scenario/manager_share.py
+++ b/manila_tempest_tests/tests/scenario/manager_share.py
@@ -91,7 +91,7 @@
                 msg = ("Image %s not found. Expecting an image including "
                        "required share tools." %
                        CONF.share.image_with_share_tools)
-                raise exceptions.InvalidConfiguration(message=msg)
+                raise exceptions.InvalidConfiguration(msg)
         self.ssh_user = CONF.share.image_username
         LOG.debug('Starting test for i:{image_id}, f:{flavor}. '
                   'user: {ssh_user}'.format(image_id=self.image_id,