Fixes for review

Author: MomIsBestFriend

pandas/core/indexers.py

@@ -69,6 +69,7 @@ def is_empty_indexer(indexer, arr_value: np.ndarray) -> bool:
 def check_setitem_lengths(indexer, value, values) -> None:
     """
     Validate that value and indexer are the same length.
+
     A special-case is allowed for when the indexer is a
     boolean array and the number of true values equals
     the length of ``value``.