ss="paragraph">
<p>The <code>merge.*.driver</code> variable&#8217;s value is used to construct a
command to run to merge ancestor&#8217;s version (<code>%O</code>), current
version (<code>%A</code>) and the other branches' version (<code>%B</code>).  These
three tokens are replaced with the names of temporary files that
hold the contents of these versions when the command line is
built. Additionally, %L will be replaced with the conflict marker
size (see below).</p>
</div>
<div class="paragraph">
