phpstan for all

src/Authorization.php

@@ -33,9 +33,10 @@ class Authorization
     /** Return if the user right is NONE, READ, WRITE, EXECUTE
         if the object doesn't exists, or is not readable, throw an exception
         @param string $object The object path to examine
-        @return NONE, READ, WRITE, EXECUTE */
+        @return string NONE, READ, WRITE, EXECUTE */
     public function validate($object)
     {
+        return "NONE";
     }
 
     /** Add a new object, with owner and group, and mode bits