ad of the diff invocation
described above.  For a path that is added, removed, or modified,
<code>GIT_EXTERNAL_DIFF</code> is called with 7 parameters:</p>
<div class="literalblock">
<div class="content">
<pre>path old-file old-hex old-mode new-file new-hex new-mode</pre>
</div>
</div>
<div class="paragraph">
<p>where:</p>
</div>
</dd>
<dt class="hdlist1">&lt;old|new&gt;-file</dt>
<dd>
<p>are files GIT_EXTERNAL_DIFF can use to read the
contents of &lt;old|new&gt;,</p>
</dd>
<dt class="hdlist1">&lt;old|new&g