message: Replace print(hist) with hist.numpy() to avoid print call, also avoid pylint too long (80) error
  Remove extra "```" as doctest use ">>>" and "..." instead, and fix pylint issue by shorten the output
diff: @@ -62,15 +62,14 @@ def histogram_fixed_width_bins(values,
  Examples:
  - ```python
  >>> # Bins will be: (-inf, 1), [1, 2), [2, 3), [3, 4), [4, inf)
  ...
  >>> nbins = 5
  >>> value_range = [0.0, 5.0]
  >>> new_values = [-1.0, 0.0, 1.5, 2.0, 5.0, 15]
  - >>> tf.histogram_fixed_width_bins(new_values, value_range, nbins=5)
  - <tf.Tensor: shape=(6,), dtype=int32, numpy=array([0, 0, 1, 2, 4, 4], dtype=int32)>
  - ```
  + >>> indices = tf.histogram_fixed_width_bins(new_values, value_range, nbins=5)
  + >>> indices.numpy()
  + array([0, 0, 1, 2, 4, 4], dtype=int32)
  """
  with ops.name_scope(name, 'histogram_fixed_width_bins',
  [values, value_range, nbins]):
  @@ -129,15 +128,14 @@ def histogram_fixed_width(values,
  Examples:
  - ```python
  >>> # Bins will be: (-inf, 1), [1, 2), [2, 3), [3, 4), [4, inf)
  ...
  >>> nbins = 5
  >>> value_range = [0.0, 5.0]
  >>> new_values = [-1.0, 0.0, 1.5, 2.0, 5.0, 15]
  - >>> tf.histogram_fixed_width(new_values, value_range, nbins=5)
  - <tf.Tensor: shape=(5,), dtype=int32, numpy=array([2, 1, 1, 0, 2], dtype=int32)>
  - ```
  + >>> hist = tf.histogram_fixed_width(new_values, value_range, nbins=5)
  + >>> hist.numpy()
  + array([2, 1, 1, 0, 2], dtype=int32)
  """
  with ops.name_scope(name, 'histogram_fixed_width',
  [values, value_range, nbins]) as name:
  