[gtkmm] builder: Fix accidentally not updated newin in doc

[Daniel Boles <dboles src gnome org>]

commit a846d4f420406051f884040059287c60c97b8017
Author: Daniel Boles <dboles src gnome org>
Date:   Mon May 20 17:48:16 2019 +0100

    builder: Fix accidentally not updated newin in doc
    
    https://gitlab.gnome.org/GNOME/gtkmm/commit/833976a0423e20ce9d966940d80623a7d49228bf#note_514865
    
    See also commit 1d768e0cfd668c274a36219e7e16a25096c94cae
    
    note to self: before merging, go for a walk, get some fresh air, wait a
    few hours, check the diff again, and notice all the leftover mistakes...

 gtk/src/builder.hg | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/src/builder.hg b/gtk/src/builder.hg
index 98ce6327..2766ebc4 100644
--- a/gtk/src/builder.hg
+++ b/gtk/src/builder.hg
@@ -549,7 +549,7 @@ public:
    * @param args Additional arguments to pass to the constructor of the derived class.
    * @return A pointer to the widget, or <tt>nullptr</tt> on failure.
    *
-   * @newin{3,94}
+   * @newin{3,96}
    */
   template <typename T_Widget, typename... Args> inline
   static T_Widget* get_widget_derived(const Glib::RefPtr<Gtk::Builder>& builder, const Glib::ustring& name, 
Args&&... args)