Remove trailing whitespace.
diff --git a/Doc/library/constants.rst b/Doc/library/constants.rst
index 12b56f8..39d61cb 100644
--- a/Doc/library/constants.rst
+++ b/Doc/library/constants.rst
@@ -14,13 +14,13 @@
.. data:: False
- The false value of the :class:`bool` type. Assignments to ``False``
+ The false value of the :class:`bool` type. Assignments to ``False``
are illegal and raise a :exc:`SyntaxError`.
.. data:: True
- The true value of the :class:`bool` type. Assignments to ``True``
+ The true value of the :class:`bool` type. Assignments to ``True``
are illegal and raise a :exc:`SyntaxError`.