public function getHelp()
    {
        $msg = $this->opts->getUsageMessage();
        // Amend the auto-generated help message:
        $options = "[ options ] [ target ]\n"
            . "Where [ target ] is the name of a section of the configuration\n"
            . "specified by the ini option, or a directory to harvest into if\n"
            . "no .ini file is used. If [ target ] is omitted, all .ini sections\n"
            . "will be processed. [ options ] may be selected from those below,\n"
            . "and will override .ini settings where applicable.";
        $this->write(str_replace('[ options ]', $options, $msg));
    }