Adds some extra code comments in Zend_Log

Author: froschdesign

library/Zend/Log.php

@@ -361,6 +361,7 @@ protected function _packEvent($message, $priority)
      */
     public function __destruct()
     {
+        /** @var Zend_Log_Writer_Abstract $writer */
         foreach($this->_writers as $writer) {
             $writer->shutdown();
         }
@@ -450,13 +451,15 @@ public function log($message, $priority, $extras = null)
         }
 
         // abort if rejected by the global filters
+        /** @var Zend_Log_Filter_Interface $filter */
         foreach ($this->_filters as $filter) {
             if (! $filter->accept($event)) {
                 return;
             }
         }
 
         // send to each writer
+        /** @var Zend_Log_Writer_Abstract $writer */
         foreach ($this->_writers as $writer) {
             $writer->write($event);
         }