More php8 compat fixes

include/pear/Date.php

@@ -196,7 +196,7 @@ class Date
      * @param mixed $date optional - date/time to initialize
      * @return object Date the new Date object
      */
-    function Date($date = null)
+    function __construct($date = null)
     {
         $this->tz = Date_TimeZone::getDefault();
         if (is_null($date)) {
@@ -1462,4 +1462,4 @@ class Date
  * c-hanging-comment-ender-p: nil
  * End:
  */
-?>
+?>