dconf: Prevent installation of systemd units on SysV.

gnome/platform/dconf.xml

@@ -172,6 +172,12 @@
 sed -i 's/module/&amp; | grep -v mangle_path/' gsettings/abicheck.sh</userinput></screen>
     -->
 
+    <para revision="sysv">
+      First, prevent unnecessary systemd units from being installed:
+    </para>
+
+<screen><userinput remap="pre">sed -i 's/install_dir: systemd_userunitdir,//' service/meson.build</userinput></screen>
+
     <para>
       Install <application>DConf</application> by running the following
       commands:

introduction/welcome/changelog.xml

@@ -44,6 +44,10 @@
     <listitem>
       <para>July 26th, 2021</para>
       <itemizedlist>
+        <listitem revision="sysv">
+           <para>[renodr] - Prevent systemd units from being installed in
+           DConf.</para>
+        </listitem>
         <listitem>
           <para>[timtas] - Update to fltk-1.3.7. Fixes
           <ulink url="&blfs-ticket-root;15312">#15312</ulink>.</para>