[vala] gtk+-3.0: Update to 3.21.4+64c15545

[Rico Tzschichholz <ricotz src gnome org>]

commit f103ea0d1c41aca472a458d1bdef8485d75915c9
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Aug 11 18:23:06 2016 +0200

    gtk+-3.0: Update to 3.21.4+64c15545

 vapi/gtk+-3.0.vapi                 |    2 +-
 vapi/packages/gtk+-3.0/gtk+-3.0.gi |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/vapi/gtk+-3.0.vapi b/vapi/gtk+-3.0.vapi
index 76ae96d..4537060 100644
--- a/vapi/gtk+-3.0.vapi
+++ b/vapi/gtk+-3.0.vapi
@@ -4790,7 +4790,7 @@ namespace Gtk {
                public unowned string get_accelerator ();
                public unowned string get_disabled_text ();
                public void set_accelerator (string accelerator);
-               public void set_disabled_text (string unset_text);
+               public void set_disabled_text (string disabled_text);
                public string accelerator { get; set; }
                public string disabled_text { get; set; }
        }
diff --git a/vapi/packages/gtk+-3.0/gtk+-3.0.gi b/vapi/packages/gtk+-3.0/gtk+-3.0.gi
index 72c1e0f..8703305 100644
--- a/vapi/packages/gtk+-3.0/gtk+-3.0.gi
+++ b/vapi/packages/gtk+-3.0/gtk+-3.0.gi
@@ -23097,7 +23097,7 @@
                                <return-type type="void"/>
                                <parameters>
                                        <parameter name="self" type="GtkShortcutLabel*"/>
-                                       <parameter name="unset_text" type="gchar*"/>
+                                       <parameter name="disabled_text" type="gchar*"/>
                                </parameters>
                        </method>
                        <property name="accelerator" type="char*" readable="1" writable="1" construct="0" 
construct-only="0"/>