message: fix typo in contrib.quantize comments
diff: @@ -161,12 +161,12 @@ def LastValueQuantize(inputs,
  # than the positive range.
  min_max_ratio = -((1 << num_bits) - 2) / (1 << num_bits)
  - # TFLite requires that 0.0 if always in the [min; max] range. Because
  + # TFLite requires that 0.0 is always in the [min; max] range. Because
  # batch_min <= batch_max, it follows that range_min <= 0 <= range_max.
  range_min = math_ops.minimum(batch_min, batch_max / min_max_ratio)
  range_max = math_ops.maximum(batch_max, batch_min * min_max_ratio)
  else:
  - # TFLite requires that 0.0 if always in the [min; max] range.
  + # TFLite requires that 0.0 is always in the [min; max] range.
  range_min = math_ops.minimum(batch_min, 0.0)
  range_max = math_ops.maximum(batch_max, 0.0)
  @@ -286,12 +286,12 @@ def MovingAvgQuantize(inputs,
  # than the positive range.
  min_max_ratio = -((1 << num_bits) - 2) / (1 << num_bits)
  - # TFLite requires that 0.0 if always in the [min; max] range. Because
  + # TFLite requires that 0.0 is always in the [min; max] range. Because
  # batch_min <= batch_max, it follows that range_min <= 0 <= range_max.
  range_min = math_ops.minimum(batch_min, batch_max / min_max_ratio)
  range_max = math_ops.maximum(batch_max, batch_min * min_max_ratio)
  else:
  - # TFLite requires that 0.0 if always in the [min; max] range.
  + # TFLite requires that 0.0 is always in the [min; max] range.
  range_min = math_ops.minimum(batch_min, 0.0)
  range_max = math_ops.maximum(batch_max, 0.0)
  