man: mention pages with more settings at end of each option list

For some unit types we have hundreds of options, and the reader may easily miss
that more options are described in other pages. We already mentioned this in
the introduction and then at the top of the option list, but it can't hurt to
repeat the information.

Also, add an (almost empty) Options section for the unit types which don't have
any custom options. It is nicer to have the same page structure in all cases,
so people can jump between pages for different types more easily.

1 files changed, 7 insertions, 1 deletions

diff --git a/man/systemd.scope.xml b/man/systemd.scope.xml
index 7d7b32df46..6d991b915f 100644
--- a/man/systemd.scope.xml
+++ b/man/systemd.scope.xml
@@ -3,7 +3,7 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
-<refentry id="systemd.scope">
+<refentry id="systemd.scope" xmlns:xi="http://www.w3.org/2001/XInclude">
   <refentryinfo>
     <title>systemd.scope</title>
     <productname>systemd</productname>
@@ -89,6 +89,10 @@
   <refsect1>
     <title>Options</title>
 
+    <para>Socket files may include a [Unit] section, which is described in
+    <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+    </para>
+
     <para>Scope files may include a [Scope]
     section, which carries information about the scope and the
     units it contains. A number of options that may be used in
@@ -109,6 +113,8 @@
         <literal>infinity</literal> (the default) to configure no runtime limit.</para></listitem>
       </varlistentry>
     </variablelist>
+
+    <xi:include href="systemd.service.xml" xpointer="shared-unit-options" />
   </refsect1>
 
   <refsect1>