Piwik\Plugins\CorePluginsAdmin\PluginInstaller::fixPluginFolderIfNeeded PHP Method

    private function fixPluginFolderIfNeeded($tmpPluginFolder)
    {
        $firstSubFolder = $this->getNameOfFirstSubfolder($tmpPluginFolder);
        if ($firstSubFolder === $this->pluginName) {
            return;
        }
        $from = $tmpPluginFolder . DIRECTORY_SEPARATOR . $firstSubFolder;
        $to = $tmpPluginFolder . DIRECTORY_SEPARATOR . $this->pluginName;
        rename($from, $to);
    }