d the remaining arguments are formatted according
     to the selected format string.  For more information see
     <a class="xref" href="nls-programmer.html#NLS-GUIDELINES" title="57.2.2. Message-Writing Guidelines">Section 57.2.2</a>.
    </p></li><li class="listitem"><p>
     <code class="function">errdetail(const char *msg, ...)</code> supplies an optional
     <span class="quote">“<span class="quote">detail</span>”</span> message; this is to be used when there is additional
     information that