[gnome-control-center] keyboard: Add "print screen" and "scroll lock" to compose key options

[Rui Matos <rtcm src gnome org>]

commit 509bf4b5d00dde6f94b417f161371340ed66ed6a
Author: Rui Matos <tiagomatos gmail com>
Date:   Sun Jul 20 19:26:38 2014 +0200

    keyboard: Add "print screen" and "scroll lock" to compose key options
    
    These are reasonable enough that we don't have to hide them.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=733400

 panels/keyboard/cc-keyboard-option.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/panels/keyboard/cc-keyboard-option.c b/panels/keyboard/cc-keyboard-option.c
index 1666683..aea0806 100644
--- a/panels/keyboard/cc-keyboard-option.c
+++ b/panels/keyboard/cc-keyboard-option.c
@@ -98,6 +98,8 @@ static const gchar *xkb_option_comp_whitelist[] = {
   "compose:lctrl",
   "compose:rctrl",
   "compose:caps",
+  "compose:prsc",
+  "compose:sclk",
   NULL
 };