/usr/bin/env sh -> /bin/sh

ci/autopkg_debian.sh

-#!/usr/bin/env sh
+#!/bin/sh
 set -e
 
 PACKAGES_DIR=$1

ci/pep8.sh

-#!/usr/bin/env sh
+#!/bin/sh
 
 r=$(dirname $(realpath $0))/..
 pep8 $r/devflow

ci/pylint.sh

-#!/usr/bin/env sh
+#!/bin/sh
 
 r=$(dirname $(realpath $0))/..
 pylint $r/devflow

ci/tests.sh

-#!/usr/bin/env sh
+#!/bin/sh
 
 nosetests  --with-coverage --cover-package=devflow --nologcapture \
            --cover-inclusive