Synchronize packaging docs with distutils’ (includes fix for #9302)
diff --git a/Doc/distutils/apiref.rst b/Doc/distutils/apiref.rst
index 4c849a9..3adbc52 100644
--- a/Doc/distutils/apiref.rst
+++ b/Doc/distutils/apiref.rst
@@ -160,7 +160,7 @@
 .. class:: Extension
 
    The Extension class describes a single C or C++extension module in a setup
-   script. It accepts the following keyword arguments in its constructor
+   script. It accepts the following keyword arguments in its constructor:
 
    +------------------------+--------------------------------+---------------------------+
    | argument name          | value                          | type                      |