man: standarize on one-line license header

[thirdparty/systemd.git] / man / systemd-timedated.service.xml

diff --git a/man/systemd-timedated.service.xml b/man/systemd-timedated.service.xml
index c8d74ddef2c7d0aba2e6ff9f2a6e2f7f98c89ca8..41399221790238823f4ee908258006e20377c5b1 100644 (file)
--- a/man/systemd-timedated.service.xml
+++ b/man/systemd-timedated.service.xml
@@ -1,29 +1,13 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
-  SPDX-License-Identifier: LGPL-2.1+
-
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
--->
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
 
 <refentry id="systemd-timedated.service" conditional='ENABLE_TIMEDATED'>
 
   <refentryinfo>
     <title>systemd-timedated.service</title>
     <productname>systemd</productname>
-
-    <authorgroup>
-      <author>
-        <contrib>Developer</contrib>
-        <firstname>Lennart</firstname>
-        <surname>Poettering</surname>
-        <email>lennart@poettering.net</email>
-      </author>
-    </authorgroup>
   </refentryinfo>
 
   <refmeta>
@@ -61,13 +45,34 @@
     <filename>systemd-timedated</filename> provides.</para>
   </refsect1>
 
+  <refsect1>
+    <title>Environment</title>
+
+    <variablelist class='environment-variables'>
+      <varlistentry>
+        <term><varname>$SYSTEMD_TIMEDATED_NTP_SERVICES</varname></term>
+
+        <listitem><para>Colon-separated list of unit names of NTP client services.
+        If not set, then
+        <citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+        is used. See the entries of NTP related commands of
+        <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+        for details about this.</para>
+
+        <para>Example:
+        <programlisting>SYSTEMD_TIMEDATED_NTP_SERVICES=ntpd.service:chronyd.service:systemd-timesyncd.service</programlisting>
+        </para></listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
   <refsect1>
     <title>See Also</title>
     <para>
       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
       <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
       <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-      <citerefentry project='man-pages'><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+      <citerefentry project='man-pages'><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd-timesyncd</refentrytitle><manvolnum>8</manvolnum></citerefentry>
     </para>
   </refsect1>