[vala] x11: Add missing binding for XUngrabKey.

[Luca Bruno <lucabru src gnome org>]

commit 1b99a3d7d7b54612b647ae67c85cbd50646c15c3
Author: Oliver Sauder <os esite ch>
Date:   Sat Dec 11 23:42:48 2010 +0100

    x11: Add missing binding for XUngrabKey.

 vapi/x11.vapi |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/vapi/x11.vapi b/vapi/x11.vapi
index 1a631a7..2567261 100644
--- a/vapi/x11.vapi
+++ b/vapi/x11.vapi
@@ -219,6 +219,9 @@ namespace X {
 		[CCode (cname = "XUngrabButton")]
 		public int ungrab_button (uint button, uint modifiers, Window grab_window);
 
+		[CCode (cname = "XUngrabKey")]
+		public int ungrab_key (int keycode, uint modifiers, Window grab_window);
+
 		[CCode (cname = "XUngrabPointer")]
 		public int ungrab_pointer (int time);