Fix not implemented wording in update_migrated_volume

It was recommended in review https://review.openstack.org/#/c/180873
that the message sent to the NotImplementedError exception be reworded.
The recommendation was made late in the review process and was not
corrected.  This patch implements the recommendation.

Change-Id: I1b0356c7b9d7e493c8501ce388ca4bc855b1e517

diff --git a/cinder/volume/driver.py b/cinder/volume/driver.py
index 1d6436ba2c4fae7c0b23ffcb57309d4feb363cf2..e931903131ff5e86b6f102c27d1958510632f215 100644 (file)
--- a/cinder/volume/driver.py
+++ b/cinder/volume/driver.py
@@ -1380,7 +1380,7 @@ class VolumeDriver(ConsistencyGroupVD, TransferVD, ManageableVD, ExtendVD,
         :param original_volume_status: The status of the original volume
         :return model_update to update DB with any needed changes
         """
-        msg = _("The method update_migrated_volume not implemented.")
+        msg = _("The method update_migrated_volume is not implemented.")
         raise NotImplementedError(msg)
 
     def migrate_volume(self, context, volume, host):