Backport source links from 3.x.
Existing links have been updated to use the new reST role. In some
files, I have also made cosmetic changes to the header.
diff --git a/Doc/library/tarfile.rst b/Doc/library/tarfile.rst
index 854ed74..5502adc 100644
--- a/Doc/library/tarfile.rst
+++ b/Doc/library/tarfile.rst
@@ -10,6 +10,9 @@
.. moduleauthor:: Lars Gustäbel <lars@gustaebel.de>
.. sectionauthor:: Lars Gustäbel <lars@gustaebel.de>
+**Source code:** :source:`Lib/tarfile.py`
+
+--------------
The :mod:`tarfile` module makes it possible to read and write tar
archives, including those using gzip or bz2 compression.