[gtk: 1/2] gtk: document return value of ShortcutFunc

[Matthias Clasen <matthiasc src gnome org>]

commit 738d962aca39bc70cc99f8547994d2db91467442
Author: Alexandros Theodotou <alex zrythm org>
Date:   Tue Jan 18 10:58:47 2022 +0000

    gtk: document return value of ShortcutFunc

 gtk/gtkshortcutaction.h | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gtk/gtkshortcutaction.h b/gtk/gtkshortcutaction.h
index 495fbbc44c..5e5798878a 100644
--- a/gtk/gtkshortcutaction.h
+++ b/gtk/gtkshortcutaction.h
@@ -37,6 +37,8 @@ G_BEGIN_DECLS
  * @user_data: (nullable): The user data provided when activating the action
  *
  * Prototype for shortcuts based on user callbacks.
+ *
+ * Returns: %TRUE if the action was successful.
  */
 typedef gboolean (* GtkShortcutFunc) (GtkWidget *widget,
                                       GVariant  *args,