use different bash path

use as default #!/bin/bash as path instead of #!/usr/bin/env bash or #! bash

tests/rip_media_station_iso.sh

@@ -1,4 +1,4 @@
-#! bash
+#!/bin/bash
 
 # This script rips a Media Station ISO to a directory whose name should uniquely
 # identify the edition of the title in a human-readable fashion. It is designed to

utils/GetFileHashesFromISO.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
 # DEFINE ERROR HANDLERS.
 set -e 

utils/ImageGoldenMaster.sh

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