src/Composer/Downloader/GzipDownloader.php
protected function getFileName(PackageInterface $package, $path)
    {
        return $path.'/'.pathinfo(parse_url($package->getDistUrl(), PHP_URL_PATH), PATHINFO_BASENAME);
    }
protected function getFileName(PackageInterface $package, $path)
    {
        return $path.'/'.pathinfo(parse_url($package->getDistUrl(), PHP_URL_PATH), PATHINFO_BASENAME);
    }
{@inheritdoc}