183      * @param bool $mutate  false = preview only, true = rewrite on disk
186     protected function runScan($mutate)  argument
210             $results[$label] = $this->walkSection($cfg['root'], $cfg['kind'], $mutate);
220      * @param bool   $mutate
223     protected function walkSection($root, $kind, $mutate)  argument
254                     ? $this->processChangelog($path, $mutate)
255                     : $this->processMetaFile($path, $mutate);
310      * @param bool   $mutate  false = count lines that would change, true = rewrite
313     protected function processChangelog($path, $mutate)  argument
315         if ($mutate) io_lock($path);
343             if (!$mutate) return $changed;
351             if ($mutate) io_unlock($path);
370      * @param bool   $mutate
373     protected function processMetaFile($path, $mutate)  argument
375         if ($mutate) io_lock($path);
396             if (!$mutate) return $changed;
401             if ($mutate) io_unlock($path);