Issue #17415: Trim trailing whitespace
diff --git a/Doc/library/os.path.rst b/Doc/library/os.path.rst
index dac479a..5e245d0 100644
--- a/Doc/library/os.path.rst
+++ b/Doc/library/os.path.rst
@@ -223,7 +223,7 @@
references so that ``A//B``, ``A/B/``, ``A/./B`` and ``A/foo/../B`` all
become ``A/B``. This string manipulation may change the meaning of a path
that contains symbolic links. On Windows, it converts forward slashes to
- backward slashes. To normalize case, use :func:`normcase`.
+ backward slashes. To normalize case, use :func:`normcase`.
.. function:: realpath(path)