Use guido's Python
diff --git a/Demo/tkinter/guido/svkill.py b/Demo/tkinter/guido/svkill.py
index cee33c9..c70e1d0 100755
--- a/Demo/tkinter/guido/svkill.py
+++ b/Demo/tkinter/guido/svkill.py
@@ -1,4 +1,4 @@
-#!/usr/local/bin/tkpython
+#! /ufs/guido/bin/sgi/tkpython
 # Tkinter interface to SYSV `kill' command.
 
 from Tkinter import *