different OSes have different messages, and that's not what the test is about anyway
fix bug #63982: isset() inconsistently produces a fatal error on protected property
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  fix bug #63982: isset() inconsistently produces a fatal error on protected property
  different OSes have different messages, and that's not what the test is about anyway