https://bugzilla.gnome.org/show_bug.cgi?id=793089
* navigation outside the widget, e.g. by calling
* gtk_widget_child_focus() on the widget’s toplevel.
*
- * The default ::keynav-failed handler returns %TRUE for
+ * The default ::keynav-failed handler returns %FALSE for
* %GTK_DIR_TAB_FORWARD and %GTK_DIR_TAB_BACKWARD. For the other
- * values of #GtkDirectionType it returns %FALSE.
+ * values of #GtkDirectionType it returns %TRUE.
*
* Whenever the default handler returns %TRUE, it also calls
* gtk_widget_error_bell() to notify the user of the failed keyboard