[vala/0.34] Regenerate GIR-based bindings

[Rico Tzschichholz <ricotz src gnome org>]

commit a9c59626e16babfc82c55e96791e0020143d85a6
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Dec 11 09:11:20 2017 +0100

    Regenerate GIR-based bindings

 vapi/gdk-3.0.vapi |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/vapi/gdk-3.0.vapi b/vapi/gdk-3.0.vapi
index 6e81d7c..7a45a6a 100644
--- a/vapi/gdk-3.0.vapi
+++ b/vapi/gdk-3.0.vapi
@@ -5389,7 +5389,7 @@ namespace Gdk {
                [Version (since = "3.16")]
                public bool get_forward_compatible ();
                [Version (since = "3.16")]
-               public void get_required_version (out int? major, out int? minor);
+               public void get_required_version (out int major, out int minor);
                [Version (since = "3.16")]
                public unowned Gdk.GLContext? get_shared_context ();
                [Version (since = "3.22")]