when error_reporting = 32767 and you navigate to Special:SpecialPages you get the following:
Notice: Did not find alias for special page 'Campaigns'. Perhaps no aliases are defined for it? [Called from SpecialPageFactory::getLocalNameFor in /Users/dan/websites/gwtoolset/core/includes/specialpage/SpecialPageFactory.php at line 581] in /Users/dan/websites/gwtoolset/core/includes/debug/Debug.php on line 303
Version: unspecified
Severity: minor