Correct the comment, regarding "upstream".
#
# ---------------------------------------------------------------------------
#
-# This software lives at:
-# http://gstein.googlecode.com/svn/trunk/python/daemonize.py
+# This code is no longer maintained "upstream", so consider this module
+# a "friendly fork" and is canonical for Apache Subversion's purposes.
+#
+# Use of systemd's single-process mechanism and re-launching of a daemon
+# can greatly simplify daemon coding/management. A possibly-svn-relevant
+# example can be found at:
+# https://github.com/apache/infrastructure-svnauthz
+#
+# Historical locations for this module were found on svn.webdav.org,
+# gstein.googlecode.com, and (most recently) gstein.svn.beanstalkapp.com.
#
import os
