[gnome-shell/wip/jtojnar/docbook-4.5] docs: Unify on single DocBook version

[Jan Tojnar <jtojnar src gnome org>]

commit bed53b9848af78b01ff15cc4a49654a876429fa3
Author: Jan Tojnar <jtojnar gmail com>
Date:   Tue Oct 13 02:58:16 2020 +0200

    docs: Unify on single DocBook version
    
    DocBook 4.5 is backwards compatible.

 docs/reference/shell/shell-docs.sgml | 4 ++--
 docs/reference/st/st-docs.sgml       | 4 ++--
 man/gnome-shell.xml                  | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/docs/reference/shell/shell-docs.sgml b/docs/reference/shell/shell-docs.sgml
index ebfd2213c8..af2d543d54 100644
--- a/docs/reference/shell/shell-docs.sgml
+++ b/docs/reference/shell/shell-docs.sgml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
-               "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd";
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+               "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd";
 [
   <!ENTITY % local.common.attrib "xmlns:xi  CDATA  #FIXED 'http://www.w3.org/2003/XInclude'">
   <!ENTITY version SYSTEM "version.xml">
diff --git a/docs/reference/st/st-docs.sgml b/docs/reference/st/st-docs.sgml
index be4cec249e..4e5fd99973 100644
--- a/docs/reference/st/st-docs.sgml
+++ b/docs/reference/st/st-docs.sgml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
-               "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd";
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+               "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd";
 [
   <!ENTITY % local.common.attrib "xmlns:xi  CDATA  #FIXED 'http://www.w3.org/2003/XInclude'">
   <!ENTITY version SYSTEM "version.xml">
diff --git a/man/gnome-shell.xml b/man/gnome-shell.xml
index b366e3fea9..2b245f7917 100644
--- a/man/gnome-shell.xml
+++ b/man/gnome-shell.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd";>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd";>
 
 <refentry id="gnome-shell">