man: include libsystemd-pkgconfig.xml in a few more man pages

for some reason this was forgotten for a couple of sd_bus man pages,
let's fix that.

man/sd-bus-errors.xml

@@ -6,7 +6,8 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd-bus-errors">
+<refentry id="sd-bus-errors"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd-bus-errors</title>
@@ -259,15 +260,7 @@
     </variablelist>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para>The various error definitions described here are available
-    as a shared library, which can be compiled and linked to with the
-    <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
-    file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>

man/sd_bus_add_match.xml

@@ -8,7 +8,7 @@
   Copyright © 2016 Julian Orth
 -->
 
-<refentry id="sd_bus_add_match">
+<refentry id="sd_bus_add_match" xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_add_match</title>
@@ -154,9 +154,7 @@
   <refsect1>
     <title>Notes</title>
 
-    <para><function>sd_bus_add_match()</function> and the other functions described here are available as a shared
+    <xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
-    library, which can be compiled and linked to with the <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para>
   </refsect1>
 
   <refsect1>

man/sd_bus_error_add_map.xml

@@ -6,7 +6,8 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd_bus_error_add_map">
+<refentry id="sd_bus_error_add_map"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_error_add_map</title>
@@ -123,15 +124,7 @@
     </variablelist>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para>The various error definitions described here are available
-    as a shared library, which can be compiled and linked to with the
-    <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
-    file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>

man/sd_bus_is_open.xml

@@ -6,7 +6,8 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd_bus_is_open">
+<refentry id="sd_bus_is_open"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_is_open</title>
@@ -88,13 +89,7 @@
     </variablelist>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para><function>sd_bus_is_open()</function> and <function>sd_bus_is_ready()</function> are available as
-    a shared library, which can be compiled and linked to with the <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>

man/sd_bus_path_encode.xml

@@ -6,7 +6,7 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd_bus_path_encode">
+<refentry id="sd_bus_path_encode" xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_path_encode</title>
@@ -141,15 +141,7 @@
     by the caller.</para>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para><function>sd_bus_path_encode()</function> and
-    <function>sd_bus_path_decode()</function> are available as a
-    shared library, which can be compiled and linked to with the
-    <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
-    file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>

man/sd_bus_request_name.xml

@@ -6,7 +6,8 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd_bus_request_name">
+<refentry id="sd_bus_request_name"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_request_name</title>
@@ -193,13 +194,7 @@
     </variablelist>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para>The <function>sd_bus_acquire_name()</function> and the other interfaces described here are available as a
-    shared library, which can be compiled and linked to with the <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>

man/sd_bus_set_connected_signal.xml

@@ -6,7 +6,8 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd_bus_set_connected_signal">
+<refentry id="sd_bus_set_connected_signal"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_set_connected_signal</title>
@@ -94,13 +95,7 @@
     </variablelist>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para><function>sd_bus_set_connected_signal()</function> and <function>sd_bus_get_connected_signal()</function> are available as
-    a shared library, which can be compiled and linked to with the <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>

man/sd_bus_set_sender.xml

@@ -6,7 +6,8 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd_bus_set_sender">
+<refentry id="sd_bus_set_sender"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_set_sender</title>
@@ -89,13 +90,7 @@
     </variablelist>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para><function>sd_bus_set_sender()</function> and <function>sd_bus_get_sender()</function> are available as
-    a shared library, which can be compiled and linked to with the <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>

man/sd_bus_set_watch_bind.xml

@@ -6,7 +6,8 @@
   SPDX-License-Identifier: LGPL-2.1+
 -->
 
-<refentry id="sd_bus_set_watch_bind">
+<refentry id="sd_bus_set_watch_bind"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_bus_set_watch_bind</title>
@@ -100,13 +101,7 @@
     </variablelist>
   </refsect1>
 
-  <refsect1>
+  <xi:include href="libsystemd-pkgconfig.xml" />
-    <title>Notes</title>
-
-    <para><function>sd_bus_set_watch_bind()</function> and <function>sd_bus_get_watch_bind()</function> are available as
-    a shared library, which can be compiled and linked to with the <constant>libsystemd</constant> <citerefentry
-    project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para>
-  </refsect1>
 
   <refsect1>
     <title>See Also</title>