refactor: use #!/usr/bin/env bash instead of #!/bin/bash (#34)

Author: stasadev

commands/varnish/varnishadm

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Control a running Varnish instance

commands/varnish/varnishd

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Varnish-cli

commands/varnish/varnishhist

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Display Varnish request histogram

commands/varnish/varnishlog

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Display Varnish logs

commands/varnish/varnishncsa

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Display Varnish logs in Apache / NCSA combined log format

commands/varnish/varnishstat

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Display Varnish Cache statistics

commands/varnish/varnishtest

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Test program for Varnish

commands/varnish/varnishtop

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ## #ddev-generated
 ## Description: Display Varnish log entry ranking