message: Fix returned time parse_human_datetime
  parse_human_datetime parses date-only strings, e.g. "today", returning the correct date but time set at 9am. This is an internal implementation in parsedatetime. This patch resets to midnight. If time is specified and parsed, it is correctly returned.
diff: @@ -203,7 +203,11 @@ def parse_human_datetime(s):
  except Exception:
  try:
  cal = parsedatetime.Calendar()
  - dttm = dttm_from_timtuple(cal.parse(s)[0])
  + parsed_dttm, parsed_flags = cal.parseDT(s)
  + # when time is not extracted, we "reset to midnight"
  + if parsed_flags & 2 == 0:
  + parsed_dttm = parsed_dttm.replace(hour=0, minute=0, second=0)
  + dttm = dttm_from_timtuple(parsed_dttm.utctimetuple())
  except Exception as e:
  logging.exception(e)
  raise ValueError("Couldn't parse date string [{}]".format(s))
  