Fix last remaining references to ex-devguide
diff --git a/Misc/python.man b/Misc/python.man
index 0921e4c..3dca604 100644
--- a/Misc/python.man
+++ b/Misc/python.man
@@ -420,7 +420,7 @@
 .br
 Documentation:  http://docs.python.org/py3k/
 .br
-Developer resources:  http://www.python.org/dev/
+Developer resources:  http://docs.python.org/devguide/
 .br
 Downloads:  http://python.org/download/
 .br