enforce bash

Change-Id: Iecd2d8f7ff2ab3a94742e1b9d85da24607ebd26a

Author: rdementi

scripts/grafana/start-prometheus.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 set -e
 

scripts/grafana/start.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 set -e