message: Fixed incorrect `hooks` doc in `EvalSpec`
diff: @@ -199,7 +199,7 @@ class EvalSpec(
  evaluations on different data sets. Metrics for different evaluations
  are saved in separate folders, and appear separately in tensorboard.
  hooks: Iterable of `tf.train.SessionRunHook` objects to run
  - on all workers (including chief) during training.
  + during evaluation.
  exporters: Iterable of `Exporter`s, or a single one, or `None`.
  `exporters` will be invoked after each evaluation.
  start_delay_secs: Int. Start evaluating after waiting for this many
  