Remove shebangs where they weren't needed and swapped out the direct use of /bin/bash for /usr/bin/env bash

Author: moebrowne

argument-parser.sh

@@ -1,4 +1,3 @@
-#!/bin/bash
 
 # Define the regex for matching the arguments
 regexArgShort='^-([a-zA-Z0-9])$'

tests/default.sh

@@ -1,4 +1,3 @@
-#!/bin/bash
 
 # Define the expected arguments
 declare -A argExpected

tests/simple.sh

@@ -1,4 +1,3 @@
-#!/bin/bash
 
 # Define the expected arguments
 declare -A argExpected

tests/tests.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 pass() {
 	echo -en "\033[31m\xE2\x80\xA2\033[0m"