$this->addOption( 'e', 'Last page id to refresh', false, true );
$this->addOption( 'dfn-chunk-size', 'Maximum number of existent IDs to check per ' .
'query, default 100000', false, true );
$this->addOption( 'e', 'Last page id to refresh', false, true );
$this->addOption( 'dfn-chunk-size', 'Maximum number of existent IDs to check per ' .
'query, default 100000', false, true );