Fix black in Travis

.travis.yml

@@ -7,6 +7,6 @@ install:
 script:
 # - mypy --ignore-missing-imports little_boxes
  - flake8 .
- - black --check
+ - black --check .
  - python -m pytest -vv --cov=little_boxes
  - codecov

tests/test_little_boxes.py

@@ -324,7 +324,10 @@ def test_little_boxes_follow_and_new_note_to_followers_and_single_actor_dedup():
     outbox = ap.Outbox(me)
 
     note = ap.Note(
-        to=[ap.AS_PUBLIC], cc=[other.id, me.followers], attributedTo=me.id, content="Hello"
+        to=[ap.AS_PUBLIC],
+        cc=[other.id, me.followers],
+        attributedTo=me.id,
+        content="Hello",
     )
     outbox.post(note)