title: man page of fc builtin uses − rather than - for options
body: <p>I know that <a href="https://stackoverflow.com/a/22992052/5825294">BUILTIN commands don't have separate man pages</a>, however I am curious about the following.</p>
  
  <p>Upon executing <code>man fc</code> in the terminal I searched for <code>-l</code> to look for its description. However, there is no result.</p>
  
  <p>The reason is that the <code>man</code> page for <code>fc</code> (and maybe other builtins?) uses <code>−</code> (which corresponds to <code>&lt;−&gt; 8722, Hex 2212, Oct 21022, Digr -2</code>) rather than <code>-</code> for option (even if the actual way to use them is the latter, not the former).</p>
  
  <p>Is this somehow intended?</p>