For the maintenance/ directory files:

For the maintenance/ directory files:
* Removing unused local vars.
* Removing unused global declarations.
* removing one or two pass-by-refs parameter declarations where not required by PHP5.
* Adding some local variable declarations / initializations (initialized to either to array(), null) to keep static code analyzer happy.
* Changing lines like this: "extract( $dbw->tableNames( 'page', 'archive' ) );" to be like this: "list ($page, $archive) = $dbw->tableNamesN( 'page', 'archive' );".
* Add one or two braces to if-else blocks.