title: Does apache commons logging supports placeholders?
body: <p><a href="https://commons.apache.org/proper/commons-logging/guide.html" rel="nofollow noreferrer">Here</a> is a user guide about <code>apache commons logging</code>, but it has no examples about placeholders. <a href="http://www.slf4j.org/manual.html#typical_usage" rel="nofollow noreferrer">Slf4j</a> can replace <code>{}</code> according to log level, e.g. it does not call <code>toString</code> and does not replace <code>{}</code> when log level is not enabled. Does apache commons logging supports this functionality?</p>