[glib] small docs xml fixup

[Ryan Lortie <ryanl src gnome org>]

commit a61f718e5e801657691a35fb402258531a2dbcd9
Author: Ryan Lortie <desrt desrt ca>
Date:   Mon Jun 24 11:19:06 2013 -0400

    small docs xml fixup

 docs/reference/gobject/tut_howto.xml |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gobject/tut_howto.xml b/docs/reference/gobject/tut_howto.xml
index bc65309..35b212a 100644
--- a/docs/reference/gobject/tut_howto.xml
+++ b/docs/reference/gobject/tut_howto.xml
@@ -200,6 +200,7 @@ maman_bar_init (MamanBar *self)
   self->priv = maman_bar_get_instance_private (self);
   self->priv->hsize = 42;
 }
+</programlisting>
           </para></listitem>
       </itemizedlist>
     </para>