message: Eager: Fix the doc string of add_execution_callback()
diff: @@ -252,7 +252,7 @@ def add_execution_callback(callback):
  Example:
  ```python
  - def print_even_callback(op_type, op_name, attrs, inputs, outputs):
  + def print_even_callback(op_type, inputs, attrs, outputs, op_name):
  # A callback that prints only the even output values.
  if outputs[0].numpy() % 2 == 0:
  print("Even output from %s: %s" % (op_name or op_type, outputs))
  @@ -268,16 +268,16 @@ def add_execution_callback(callback):
  Args:
  callback: a callable of the signature
  - `f(op_type, op_name, attrs, inputs, outputs)`.
  + `f(op_type, inputs, attrs, outputs, op_name)`.
  `op_type` is the type of the operation that was just executed (e.g.,
  `MatMul`).
  - `op_name` is the name of the operation that was just executed. This
  - name is set by the client who created the operation and can be `None` if
  - it is unset.
  + `inputs` is the `list` of input `Tensor`(s) to the op.
  `attrs` contains the attributes of the operation as a `tuple` of
  alternating attribute name and attribute value.
  - `inputs` is the `list` of input `Tensor`(s) to the op.
  `outputs` is the `list` of output `Tensor`(s) from the op.
  + `op_name` is the name of the operation that was just executed. This
  + name is set by the client who created the operation and can be `None`
  + if it is unset.
  Return value(s) from the callback are ignored.
  """
  execute.execute = execute.execute_with_callbacks
  