guaranteed empty).</p>
</dd>
<dt class="hdlist1"><em>option update-shallow</em> {<em>true</em>|<em>false</em>}</dt>
<dd>
<p>Allow to extend .git/shallow if the new refs require it.</p>
</dd>
<dt class="hdlist1"><em>option pushcert</em> {<em>true</em>|<em>false</em>}</dt>
<dd>
<p>GPG sign pushes.</p>
</dd>
<dt class="hdlist1"><em>option push-option</em> &lt;string&gt;</dt>
<dd>
<p>Transmit &lt;string&gt; as a push option. As the push option
must not contain LF or NUL characters, the string is not encoded.</p