shadow/man/login.defs.d/SYSLOG_SU_ENAB.xml

<!--
   SPDX-FileCopyrightText: 1991 - 1993, Julianne Frances Haugh
   SPDX-FileCopyrightText: 1991 - 1993, Chip Rosenthal
   SPDX-FileCopyrightText: 2007 - 2008, Nicolas François
   SPDX-License-Identifier: BSD-3-Clause
-->
<varlistentry>
  <term><option>SYSLOG_SU_ENAB</option> (boolean)</term>
  <listitem>
    <para>
      Enable "syslog" logging of <command>su</command> activity - in
      addition to sulog file logging.
    </para>
  </listitem>
</varlistentry>