d, is used as a name of the argument in the
help output, for options that take arguments. <code>&lt;arg-hint&gt;</code> is
terminated by the first whitespace.  It is customary to use a
dash to separate words in a multi-word argument hint.</p>
</dd>
</dl>
</div>
<div class="paragraph">
<p>The remainder of the line, after stripping the spaces, is used
as the help associated to the option.</p>
</div>
<div class="paragraph">
<p>Blank lines are ignored, and lines that don&#8217;t match this specifica