[PATCH] use "! /usr/bin/env python" in generate_docs.py

[Robert Widhopf-Fenk]

On my system /usr/bin/python is version 2.3.5 and thus
generate_docs.py dies with an error.

Absolute paths should not be used for python.

-------------- next part --------------
=== modified file 'generate_docs.py'
--- generate_docs.py	
+++ generate_docs.py	
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#! /usr/bin/env python
 
 # Copyright 2005 Canonical Ltd.