doc: Update PAM documentation from DockBook 4 to DocBook 5

Changed files
--------------

Make.xml.rules.in:
- Using RNG file instead of DTD file for checking XML files.
- Taking the correct stylesheet for README files.

doc/sag/Makefile.am, doc/adg/Makefile.am, doc/mwg/Makefile.am:
- Using RNG file instead of DTD file for checking XML files.

configure.ac:
- Adding a new option for selecting RNG check file (-enable-docbook-rng)
- Switching stylesheets to docbook 5
- Checking DocBook 5 environment instead of DocBook 4 environment

*.xml:
Update from DockBook 4 to DocBook 5

1 files changed, 16 insertions, 26 deletions

diff --git a/doc/sag/pam_nologin.xml b/doc/sag/pam_nologin.xml
index 0c626b82..f2acf492 100644
--- a/doc/sag/pam_nologin.xml
+++ b/doc/sag/pam_nologin.xml
@@ -1,34 +1,24 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
-        "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
-<section id='sag-pam_nologin'>
+<section xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="sag-pam_nologin">
   <title>pam_nologin - prevent non-root users from login</title>
-  <cmdsynopsis>
-    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
-     href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//cmdsynopsis[@id = "pam_nologin-cmdsynopsis"]/*)'/>
+  <cmdsynopsis sepchar=" ">
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(id("pam_nologin-cmdsynopsis")/*)'/>
   </cmdsynopsis>
-  <section id='sag-pam_nologin-description'>
-    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
-     href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-description"]/*)'/>
+  <section xml:id="sag-pam_nologin-description">
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(id("pam_nologin-description")/*)'/>
   </section>
-  <section id='sag-pam_nologin-options'>
-    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
-     href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-options"]/*)'/>
+  <section xml:id="sag-pam_nologin-options">
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(id("pam_nologin-options")/*)'/>
   </section>
-  <section id='sag-pam_nologin-types'>
-    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
-     href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-types"]/*)'/>
+  <section xml:id="sag-pam_nologin-types">
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(id("pam_nologin-types")/*)'/>
   </section>
-  <section id='sag-pam_nologin-return_values'>
-    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
-     href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-return_values"]/*)'/>
+  <section xml:id="sag-pam_nologin-return_values">
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(id("pam_nologin-return_values")/*)'/>
   </section>
-  <section id='sag-pam_nologin-examples'>
-    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
-     href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-examples"]/*)'/>
+  <section xml:id="sag-pam_nologin-examples">
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(id("pam_nologin-examples")/*)'/>
   </section>
-  <section id='sag-pam_nologin-author'>
-    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
-     href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(//refsect1[@id = "pam_nologin-author"]/*)'/>
+  <section xml:id="sag-pam_nologin-author">
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../modules/pam_nologin/pam_nologin.8.xml" xpointer='xpointer(id("pam_nologin-author")/*)'/>
   </section>
-</section>
+</section>
\ No newline at end of file