Updated shabang for dependency installation scripts.

wine/install-dependencies-arch.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Immediately exit if errors are encountered.
 set -e
@@ -72,4 +72,4 @@ configure_arch() {
 
 configure_arch
 
-exit 0
+exit 0

wine/install-dependencies-debian.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Immediately exit if errors are encountered.
 set -e