comments and whatsnew edits

Author: economy

doc/source/whatsnew/v0.20.2.txt

@@ -44,7 +44,7 @@ Bug Fixes
 - Bug in ``DataFrame.update()`` with ``overwrite=False`` and ``NaN values`` (:issue:`15593`)
 - Passing an invalid engine to :func:`read_csv` now raises an informative
   ``ValueError`` rather than ``UnboundLocalError``. (:issue:`16511`)
-- Bug in ``pd.cut`` when ``labels`` are set (:issue:`16459`)
+- Bug in ``pd.cut`` when ``labels`` are set, resulting in incorrect label ordering (:issue:`16459`)
 - Fixed a compatibility issue with IPython 6.0's tab completion showing deprecation warnings on Categoricals (:issue:`16409`)
 
 Conversion

pandas/tests/reshape/test_tile.py

@@ -220,6 +220,7 @@ def test_cut_pass_labels(self):
         exp = Categorical.from_codes([1] + 4 * [0] + [1, 2], labels)
         tm.assert_categorical_equal(result, exp)
 
+	# issue 16459
         labels = ['Good', 'Medium', 'Bad']
         result = cut(arr, 3, labels=labels)
         exp = cut(arr, 3, labels=Categorical(labels, categories=labels,