[gtk+/gtk-3-4] doc: Add missing CDATA around a XML programlisting

[Matthias Clasen <matthiasc src gnome org>]

commit 0d69020d6cd044705bcb7c40bf3c96d9ae6864e8
Author: Volker Sobek <reklov live com>
Date:   Fri May 4 02:08:21 2012 +0200

    doc: Add missing CDATA around a XML programlisting
    
    https://bugzilla.gnome.org/show_bug.cgi?id=675423

 gtk/gtkuimanager.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkuimanager.c b/gtk/gtkuimanager.c
index 40ffc3c..5108fa3 100644
--- a/gtk/gtkuimanager.c
+++ b/gtk/gtkuimanager.c
@@ -123,7 +123,7 @@
  *
  * <example>
  * <title>A UI definition</title>
- * <programlisting>
+ * <programlisting><![CDATA[
  * <ui>
  *   <menubar>
  *     <menu name="FileMenu" action="FileMenuAction">
@@ -148,7 +148,7 @@
  *     </placeholder>
  *   </toolbar>
  * </ui>
- * </programlisting>
+ * ]]></programlisting>
  * </example>
  *
  * The constructed widget hierarchy is very similar to the element tree