message: remove keep_dims warning in maxout layer
diff: @@ -106,6 +106,6 @@ class MaxOut(base.Layer):
  if shape[i] is None:
  shape[i] = gen_array_ops.shape(inputs)[i]
  outputs = math_ops.reduce_max(
  - gen_array_ops.reshape(inputs, shape), -1, keep_dims=False)
  + gen_array_ops.reshape(inputs, shape), -1, keepdims=False)
  return outputs
  