syntax: rename author_user in author

djangoldp_notification/migrations/0005_auto_20190507_0858.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2019-05-07 08:58
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('djangoldp_notification', '0004_auto_20190425_1141'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='notification',
+            old_name='author_user',
+            new_name='author',
+        ),
+    ]