[libgnomekbd] Do not display VoidSymbol, use "" instead

[Sergey V. Udaltsov <svu src gnome org>]

commit dfd0e79fd12f56d20e734cbf15d656d1da15e63c
Author: Sergey V. Udaltsov <svu gnome org>
Date:   Thu Feb 17 15:47:35 2011 +0000

    Do not display VoidSymbol, use "" instead
    
    https://bugs.freedesktop.org/show_bug.cgi?id=34369

 libgnomekbd/gkbd-keyboard-drawing.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/libgnomekbd/gkbd-keyboard-drawing.c b/libgnomekbd/gkbd-keyboard-drawing.c
index 96a8e63..ac05fd2 100644
--- a/libgnomekbd/gkbd-keyboard-drawing.c
+++ b/libgnomekbd/gkbd-keyboard-drawing.c
@@ -807,6 +807,10 @@ set_key_label_in_layout (GkbdKeyboardDrawingRenderContext * context,
 		set_markup (context, "Compose");
 		break;
 
+	case GDK_KEY_VoidSymbol:
+		set_markup (context, "");
+		break;
+
 	default:
 		uc = gdk_keyval_to_unicode (keyval);
 		if (uc != 0 && g_unichar_isgraph (uc)) {