Merge pull request #6805 from sivel/env-interpreter-fix

Fix interpreter lines in a couple of modules

library/cloud/docker_image

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 #
 
 # (c) 2014, Pavel Antonov <antonov@adwz.ru>

library/database/riak

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 # -*- coding: utf-8 -*-
 
 # (c) 2013, James Martin <jmartin@basho.com>, Drew Kerrigan <dkerrigan@basho.com>