Fix shebang line to match upstream.

bin/dul-daemon

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 # dul-daemon - Simple git-daemon a like
 # Copyright (C) 2008 John Carr <john.carr@unrouted.co.uk>
 # 

bin/dulwich

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 # dulwich - Simple command-line interface to Dulwich
 # Copyright (C) 2008 Jelmer Vernooij <jelmer@samba.org>
 #