SimplePie 1.5.8 manual upgrade (#4113)

Follow-up of https://github.com/FreshRSS/FreshRSS/pull/4011
Instead of https://github.com/FreshRSS/FreshRSS/pull/4102
* https://github.com/simplepie/simplepie/commit/bea5de77afc274dc7c36cac39cdf53de346a5b50
* https://github.com/simplepie/simplepie/commit/5aab77e105d4384c9bb1a747010f380c0506f7a2
* https://github.com/simplepie/simplepie/commit/76be63e72ea6867d9982bf9bd97ba706b196d602

lib/SimplePie/SimplePie.php

@@ -33,7 +33,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  *
  * @package SimplePie
- * @version 1.5.6
+ * @version 1.5.8
  * @copyright 2004-2017 Ryan Parman, Sam Sneddon, Ryan McCue
  * @author Ryan Parman
  * @author Sam Sneddon
@@ -50,7 +50,7 @@ define('SIMPLEPIE_NAME', 'SimplePie');
 /**
  * SimplePie Version
  */
-define('SIMPLEPIE_VERSION', '1.5.6');
+define('SIMPLEPIE_VERSION', '1.5.8');
 
 /**
  * SimplePie Build
@@ -1389,7 +1389,7 @@ class SimplePie
 	 * configuration options get processed, feeds are fetched, cached, and
 	 * parsed, and all of that other good stuff.
 	 *
-	 * @return positive integer with modification time if using cache, boolean true if otherwise successful, false otherwise
+	 * @return boolean|integer positive integer with modification time if using cache, boolean true if otherwise successful, false otherwise
 	 */
 	public function init()
 	{
@@ -1845,7 +1845,7 @@ class SimplePie
 	}
 
 	/**
-	 * Get the error message for the occured error
+	 * Get the error message for the occurred error
 	 *
 	 * @return string|array Error message, or array of messages for multifeeds
 	 */

lib/SimplePie/SimplePie/Cache/Redis.php

@@ -152,7 +152,7 @@ class SimplePie_Cache_Redis implements SimplePie_Cache_Base {
         if ($data !== false) {
             $return = $this->cache->set($this->name, $data);
             if ($this->options['expire']) {
-                return $this->cache->expire($this->name, $this->ttl);
+                return $this->cache->expire($this->name, $this->options['expire']);
             }
             return $return;
         }

lib/SimplePie/SimplePie/Locator.php

@@ -64,6 +64,7 @@ class SimplePie_Locator
 	var $max_checked_feeds = 10;
 	var $force_fsockopen = false;
 	var $curl_options = array();
+	var $dom;
 	protected $registry;
 
 	public function __construct(SimplePie_File $file, $timeout = 10, $useragent = null, $max_checked_feeds = 10, $force_fsockopen = false, $curl_options = array())

lib/SimplePie/SimplePie/Sanitize.php

@@ -71,6 +71,7 @@ class SimplePie_Sanitize
 	var $useragent = '';
 	var $force_fsockopen = false;
 	var $replace_url_attributes = null;
+	var $registry;
 
 	/**
 	 * List of domains for which to force HTTPS.