Fix cake shell script to run properly on macos.

Fixes #3323

cake/console/cake

@@ -1,34 +1,33 @@
-#!/bin/bash
+#!/usr/bin/env bash
 ################################################################################
 #
 # Bake is a shell script for running CakePHP bake script
-# PHP versions 4 and 5
+# PHP 5
 #
 # CakePHP(tm) :  Rapid Development Framework (http://cakephp.org)
 # Copyright 2005-2012, Cake Software Foundation, Inc.
 #
 # Licensed under The MIT License
 # Redistributions of files must retain the above copyright notice.
 #
-# @copyright            Copyright 2005-2012, Cake Software Foundation, Inc.
-# @link                 http://cakephp.org CakePHP(tm) Project
-# @package              Cake
-# @subpackage           Cake.Console
-# @since                CakePHP(tm) v 1.2.0.5012
-# @license              MIT License (http://www.opensource.org/licenses/mit-license.php)
+# @copyright    Copyright 2005-2012, Cake Software Foundation, Inc.
+# @link         http://cakephp.org CakePHP(tm) Project
+# @package      cake.Console
+# @since        CakePHP(tm) v 1.2.0.5012
+# @license      MIT License (http://www.opensource.org/licenses/mit-license.php)
 #
 ################################################################################
 LIB=$(cd -P -- "$(dirname -- "$0")" && pwd -P) && LIB=$LIB/$(basename -- "$0")
 
-while [ -h $LIB ]; do
-    DIR=$(dirname -- "$LIB")
-    SYM=$(readlink $LIB)
-    LIB=$(cd $DIR && cd $(dirname -- "$SYM") && pwd)/$(basename -- "$SYM")
+while [ -h "$LIB" ]; do
+	DIR=$(dirname -- "$LIB")
+	SYM=$(readlink "$LIB")
+	LIB=$(cd "$DIR" && cd $(dirname -- "$SYM") && pwd)/$(basename -- "$SYM")
 done
 
 LIB=$(dirname -- "$LIB")/
 APP=`pwd`
 
-exec php -q ${LIB}cake.php -working "${APP}" "$@"
+exec php -q "$LIB"cake.php -working "$APP" "$@"
 
-exit;
+exit;