resolve comment

src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserReconciler.java

@@ -82,7 +82,7 @@ public class OzgCloudElsterTransferUserReconciler implements Reconciler<OzgCloud
 			service.delete(user);
 			return DeleteControl.defaultDelete();
 		} catch (Exception e) {
-			LOG.warn(namespace + " could not delete.", e);
+			LOG.warn("{} could not delete: {}", namespace, e);
 			return DeleteControl.noFinalizerRemoval().rescheduleAfter(ElsterTransferOperatorConfiguration.RECONCILER_RETRY_SECONDS_ON_ERROR);
 		}
 	}