[gobject-introspection/wip/jtojnar/doc-fixes: 2/2] docs: Unify DocBook doctype

[Jan Tojnar <jtojnar src gnome org>]

commit c193a227ffbe3e14b2c6bda74889fcac004db9f0
Author: Jan Tojnar <jtojnar gmail com>
Date:   Fri May 15 21:20:43 2020 +0200

    docs: Unify DocBook doctype
    
    There has been no backwards incompatible changes between DockBook 4.3
    and 4.5 so there is no need to use both.
    
    Ideally, we would switch to DocBook 5 but that will require more changes.

 docs/reference/gi-struct-hierarchy.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/docs/reference/gi-struct-hierarchy.xml b/docs/reference/gi-struct-hierarchy.xml
index 685f85aa..7d40e053 100644
--- a/docs/reference/gi-struct-hierarchy.xml
+++ b/docs/reference/gi-struct-hierarchy.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
-               "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"; [
+<!DOCTYPE refentry 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">
 ]>