4 files changed, 3 insertions, 4 deletions
diff --git a/system/libraries/Cache/drivers/Cache_redis.php b/system/libraries/Cache/drivers/Cache_redis.php
index e541237e3..466a891f7 100644
--- a/system/libraries/Cache/drivers/Cache_redis.php
+++ b/system/libraries/Cache/drivers/Cache_redis.php
@@ -69,7 +69,6 @@ class CI_Cache_redis extends CI_Driver
 	 */
 	protected $_redis;
 
-
 	/**
 	 * del()/delete() method name depending on phpRedis version
 	 *
diff --git a/system/libraries/Session/Session_driver.php b/system/libraries/Session/Session_driver.php
index b1b1b073e..ec4b76841 100644
--- a/system/libraries/Session/Session_driver.php
+++ b/system/libraries/Session/Session_driver.php
@@ -153,7 +153,7 @@ abstract class CI_Session_driver {
 
 		return setcookie(
 			$this->_config['cookie_name'],
-			NULL,
+			'',
 			array(
 				'expires' => 1,
 				'path' => $this->_config['cookie_path'],
diff --git a/system/libraries/Session/drivers/Session_files_driver.php b/system/libraries/Session/drivers/Session_files_driver.php
index 4b7b9878b..c912fc71d 100644
--- a/system/libraries/Session/drivers/Session_files_driver.php
+++ b/system/libraries/Session/drivers/Session_files_driver.php
@@ -35,7 +35,7 @@
  * @link	https://codeigniter.com
  * @since	Version 3.0.0
  * @filesource
-*/
+ */
 defined('BASEPATH') OR exit('No direct script access allowed');
 
 /**
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index 11d4400fe..ce39fceb2 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -1909,7 +1909,7 @@ class XML_RPC_Values extends CI_Xmlrpc
 	 * @param	int	unix timestamp
 	 * @param	bool
 	 * @return	string
-	*/
+	 */
 	public function iso8601_encode($time, $utc = FALSE)
 	{
 		return ($utc) ? date('Ymd\TH:i:s', $time) : gmdate('Ymd\TH:i:s', $time);