(legacy) fix static in PEAR include

src/etc/inc/CHAP.inc

@@ -170,7 +170,7 @@ class Crypt_CHAP_MSv1 extends Crypt_CHAP
     function Crypt_CHAP_MSv1()
     {
         $this->Crypt_CHAP();
-        $this->loadExtension('hash');
+        self::loadExtension('hash');
     }
 
     /**

src/etc/inc/PEAR.inc

@@ -704,7 +704,7 @@ class PEAR
     * @param string $ext The extension name
     * @return bool Success or not on the dl() call
     */
-    function loadExtension($ext)
+    static function loadExtension($ext)
     {
         if (extension_loaded($ext)) {
             return true;