new shebangs

tools/dc

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 CONTAINER="my-container" # the name of the container in which to 'exec' something
 CONFIG="$(dirname $([ -L $0 ] && readlink -f $0 || echo $0))/docker-compose.yml" # path to compose yml file
 CMD="docker-compose -f $CONFIG" # docker-compose command