<p>The merge driver is expected to leave the result of the merge in
the file named with <code>%A</code> by overwriting it, and exit with zero
status if it managed to merge them cleanly, or non-zero if there
were conflicts.</p>
</div>
<div class="paragraph">
<p>The <code>merge.*.recursive</code> variable specifies what other merge
driver to use when the merge driver is called for an internal
merge between common ancestors, when there are more than one.
When left unspecified, the driver itself is use