Consistency check for versionadded/changed directives.
diff --git a/Doc/distutils/sourcedist.rst b/Doc/distutils/sourcedist.rst
index 2c2d995..15d0baf 100644
--- a/Doc/distutils/sourcedist.rst
+++ b/Doc/distutils/sourcedist.rst
@@ -206,6 +206,6 @@
:option:`-o` is a shortcut for :option:`--manifest-only`.
.. versionchanged:: 3.1
- An existing generated :file:`MANIFEST` will be regenerated without
- :command:`sdist` comparing its modification time to the one of
- :file:`MANIFEST.in` or :file:`setup.py`.
+ An existing generated :file:`MANIFEST` will be regenerated without
+ :command:`sdist` comparing its modification time to the one of
+ :file:`MANIFEST.in` or :file:`setup.py`.