tiny, tiny fix to logging

pkg/agent/clean/adunmigration/rtbs.go

@@ -384,7 +384,7 @@ func migrateGRBs(workunit *migrateUserWorkUnit, sc *config.ScaledContext, dryRun
 				return true, nil
 			})
 			if err != nil {
-				logrus.Errorf("[%v] permanent error when GRB prtb, giving up: %v", migrateGrbsOperation, err)
+				logrus.Errorf("[%v] permanent error while creating GRB, giving up: %v", migrateGrbsOperation, err)
 				continue
 			}