message: remove double epsilon in binary crossentropy computation
diff: @@ -5046,8 +5046,8 @@ def binary_crossentropy(target, output, from_logits=False):
  output = clip_ops.clip_by_value(output, epsilon_, 1. - epsilon_)
  # Compute cross entropy from probabilities.
  - bce = target * math_ops.log(output + epsilon())
  - bce += (1 - target) * math_ops.log(1 - output + epsilon())
  + bce = target * math_ops.log(output)
  + bce += (1 - target) * math_ops.log(1 - output)
  return -bce
  