From 00a5510b1deadc5960e50e82acd94bc7f5553f2c Mon Sep 17 00:00:00 2001
From: Jose Lorenzo Rodriguez <jose.zap@gmail.com>
Date: Thu, 19 Jan 2012 22:26:59 -0430
Subject: [PATCH] Readability changes

---
 lib/Cake/Network/CakeResponse.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/Cake/Network/CakeResponse.php b/lib/Cake/Network/CakeResponse.php
index 0bd5e47bf3b..889f860fa84 100644
--- a/lib/Cake/Network/CakeResponse.php
+++ b/lib/Cake/Network/CakeResponse.php
@@ -713,11 +713,11 @@ public function sharable($public = null, $time = null) {
 			return $sharable;
 		}
 		if ($public) {
-			$this->_cacheDirectives['public'] = null;
+			$this->_cacheDirectives['public'] = true;
 			unset($this->_cacheDirectives['private']);
 			$this->sharedMaxAge($time);
 		} else {
-			$this->_cacheDirectives['private'] = null;
+			$this->_cacheDirectives['private'] = true;
 			unset($this->_cacheDirectives['public']);
 			$this->maxAge($time);
 		}
@@ -781,7 +781,7 @@ public function maxAge($seconds = null) {
 	public function mustRevalidate($enable = null) {
 		if ($enable !== null) {
 			if ($enable) {
-				$this->_cacheDirectives['must-revalidate'] = null;
+				$this->_cacheDirectives['must-revalidate'] = true;
 			} else {
 				unset($this->_cacheDirectives['must-revalidate']);
 			}
@@ -799,7 +799,7 @@ public function mustRevalidate($enable = null) {
 	protected function _setCacheControl() {
 		$control = '';
 		foreach ($this->_cacheDirectives as $key => $val) {
-			$control .= is_null($val) ? $key : sprintf('%s=%s', $key, $val);
+			$control .= $val === true ? $key : sprintf('%s=%s', $key, $val);
 			$control .= ', ';
 		}
 		$control = rtrim($control, ', ');