Fix the versionadded indentation in exec_module doc (GH-8719)

andresdelfino · Mariatta · commit 65b5ef02ec1f · 2018-08-11T23:50:46.000-07:00
diff --git a/Doc/library/importlib.rst b/Doc/library/importlib.rst
@@ -770,7 +770,7 @@ ABC hierarchy::
 
        Concrete implementation of :meth:`Loader.exec_module`.
 
-      .. versionadded:: 3.4
+       .. versionadded:: 3.4
 
     .. method:: load_module(fullname)
 
