 UTF-8 comment from the special extra field). Convert it
      to UTF-8.</dd>
</dl>
</div>
<a class="permalink" href="#Note"><i class="Em" id="Note">Note</i></a>: ASCII is
  a subset of both CP-437 and UTF-8.
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
  VALUES</a></h1>
<p class="Pp">Upon successful completion, a pointer to the comment is returned,
    or <code class="Dv">NULL</code> if there is no comment. In case of an error,
    <cod