--- foo.orig	2010-08-27 16:51:53.000000000 -0500
+++ foo	2012-05-02 18:34:25.000000000 -0500
@@ -1,5 +1,2 @@
-#!/bin/sh
-# -*- tcl -*-
-# The next line is executed by /bin/sh, but not tcl \
-exec tclsh "$0" ${1+"$@"}
+#!@PREFIX@/bin/expect