Apply Black code formatting.

Author: refeed

lib/date_helper.py

@@ -3,5 +3,5 @@
 # I don't love this format, feel free to change (I just
 # extracted it from prior code).
 def format_date1(ts):
-    """ Nov 05 2019 at 02:51"""
+    """Nov 05 2019 at 02:51"""
     return datetime.utcfromtimestamp(ts).strftime("%b %d %Y at %H:%M")