message: typo fix
  Copied the new description from docstring on line 37. Used the phrase "spectogram timeslice" rather than "frequency window" for consistency with the tooltip on ```--window_size_ms```.
diff: @@ -357,12 +357,12 @@ if __name__ == '__main__':
  '--window_size_ms',
  type=float,
  default=30.0,
  - help='How long each spectrogram timeslice is',)
  + help='How long each spectrogram timeslice is.',)
  parser.add_argument(
  '--window_stride_ms',
  type=float,
  default=10.0,
  - help='How long each spectrogram timeslice is',)
  + help='How far to move in time between spectogram timeslices.',)
  parser.add_argument(
  '--dct_coefficient_count',
  type=int,
  