bpo-26184: import.rst: Improve versionchanged note (GH-325) (GH-326)

(cherry picked from commit 1f5639c77f736c18fb5a85b4a1850121e25c788e)
diff --git a/Doc/reference/import.rst b/Doc/reference/import.rst
index 484457a..4dbd9d8 100644
--- a/Doc/reference/import.rst
+++ b/Doc/reference/import.rst
@@ -468,7 +468,7 @@
 
 .. versionchanged:: 3.6
    An :exc:`ImportError` is raised when ``exec_module()`` is defined but
-   ``create_module`` is not.
+   ``create_module()`` is not.
 
 Submodules
 ----------