[ZF-6859] Zend_Date:

 - fix for a Redhat only problem


git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@15909 44c647ce-9c0f-0410-b52a-842ac1e357ba

library/Zend/Date/DateObject.php

@@ -658,7 +658,7 @@ abstract class Zend_Date_DateObject {
     {
 
         // actual timestamp
-        if ($timestamp === null) {
+        if (!is_numeric($timestamp)) {
             return getdate();
         }