[gtk+] docs: use a code block instead of <screen>

[William Jon McCann <mccann src gnome org>]

commit ff8864cbf3ac43c1c346e9633cfa1f106b94dfe2
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Feb 4 17:31:17 2014 -0500

    docs: use a code block instead of <screen>

 gdk/gdkdevicemanager.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gdk/gdkdevicemanager.c b/gdk/gdkdevicemanager.c
index ace175d..171aa3a 100644
--- a/gdk/gdkdevicemanager.c
+++ b/gdk/gdkdevicemanager.c
@@ -79,7 +79,7 @@
  *
  * ## Master and slave devices
  *
- * <screen>
+ * |[
  * carlos sacarino:~$ xinput list
  * ⎡ Virtual core pointer                          id=2    [master pointer  (3)]
  * ⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
@@ -96,7 +96,7 @@
  *     ↳ Integrated Camera                         id=9    [slave  keyboard (3)]
  *     ↳ AT Translated Set 2 keyboard              id=12   [slave  keyboard (3)]
  *     ↳ ThinkPad Extra Buttons                    id=15   [slave  keyboard (3)]
- * </screen>
+ * ]|
  *
  * By default, GDK will automatically listen for events coming from all
  * master devices, setting the #GdkDevice for all events coming from input