title: Why did the authors of psql decide to have capital U (`-U`) for the user option rather than small u (`-u`)?
body: <p>It makes so much more sense to just use the small u <code>-u</code> option for the user option. All other connection options (<code>-h</code>, <code>-p</code>, <code>-d</code>) are lowercase. <code>sudo</code> command also uses lowercase <code>-u</code> for its user option. The lowercase <code>-u</code> option is not used for anything else either.</p>
  <p>Then why?</p>