Fix flake8 issue

arkindex/images/migrations/0002_image_status.py

@@ -15,6 +15,10 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='image',
             name='status',
-            field=enumfields.fields.EnumField(default='unchecked', enum=arkindex.images.models.ImageStatus, max_length=50),
+            field=enumfields.fields.EnumField(
+                default='unchecked',
+                enum=arkindex.images.models.ImageStatus,
+                max_length=50
+            ),
         ),
     ]