Change #! line to modern usage
diff --git a/Demo/pdist/rcsbump b/Demo/pdist/rcsbump
index 7ae9c50..e4e9ed5 100755
--- a/Demo/pdist/rcsbump
+++ b/Demo/pdist/rcsbump
@@ -1,4 +1,4 @@
-#!/usr/local/bin/python
+#!/usr/bin/env python
 # -*- python -*-
 #
 # guido's version, from rcsbump,v 1.2 1995/06/22 21:27:27 bwarsaw Exp