tools: use /usr/bin/env bash instead of /bin/bash

Signed-off-by: Marc 'risson' Schmitt <marc.schmitt@risson.space>
Change-Id: I374f7427a4318d00ca474367818117e11789ec13

tools/cleanup-containers

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 containers_running=$(sudo docker ps --filter "label=kolla_version" --format "{{.Names}}")
 

tools/cleanup-host

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Spawning the neutron agents containers leaves artifacts on the host.
 # This script removes these artifacts.

tools/cleanup-images

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Move to top level directory
 REAL_PATH=$(python -c "import os;print os.path.realpath('$0')")

tools/diag

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo "##### System Identification #####"
 egrep -w 'PRETTY_NAME|VERSION_ID' /etc/os-release

tools/init-runonce

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -o errexit
 set -o pipefail

tools/kolla-ansible

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # This script can be used to interact with kolla via ansible.
 

tools/loc

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ANSIBLE=`find ansible -type f -exec cat {} \; | wc -l`
 DOCKER=`find docker -type f -exec cat {} \; | wc -l`

tools/ovs-dpdkctl.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 _XTRACE_OVS_DPDK_CTL=$(set +o | grep xtrace)
 if [[ "${OVS_DPDK_CTL_DEBUG}" == "True" ]]; then

tools/pre-commit-hook

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 TOPLEVEL=$(git rev-parse --show-toplevel)
 RES=0

tools/run-bashate.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Ignore E006 -- line length greater than 80 char
 # Error on E005 -- file does not begin with #! or have .sh prefix

tools/validate-all-yaml.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 REAL_PATH=$(python -c "import os,sys;print os.path.realpath('$0')")
 cd "$(dirname "$REAL_PATH")/.."

tools/validate-docker-execute.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # This script can be used to check user privilege to execute
 # docker commands