diff -up ./src/icfg.orig ./src/icfg
--- ./src/icfg.orig	2015-07-17 17:22:04.794083444 -0400
+++ ./src/icfg	2015-07-17 17:22:14.282355420 -0400
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 import os
 import sys
 import string