[gtkmm: 1/2] Update object.h

[Kjell Ahlstedt <kjellahl src gnome org>]

commit c0e2cd09c0a42a6681e49c83024224ff796dcf95
Author: LI Daobing <lidaobing gmail com>
Date:   Thu Sep 30 07:41:55 2021 +0000

    Update object.h

 gtk/gtkmm/object.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkmm/object.h b/gtk/gtkmm/object.h
index 07571666..e36007f3 100644
--- a/gtk/gtkmm/object.h
+++ b/gtk/gtkmm/object.h
@@ -32,7 +32,7 @@ class GTKMM_API Object;
  * For instance,
  * @code
  * Gtk::Button* button = Gtk::manage( new Gtk::Button("Hello") );
- * vbox.pack_start(*button); //vbox will delete button when vbox is deleted.
+ * vbox.append(*button); //vbox will delete button when vbox is deleted.
  * @endcode
  *
  * @param obj A Gtk::Object, such as a gtkmm widget.
@@ -52,7 +52,7 @@ T* manage(T* obj)
  * For instance,
  * @code
  * auto button = Gtk::make_managed<Gtk::Button>("Hello");
- * vbox.pack_start(*button); //vbox will delete button when vbox is deleted.
+ * vbox.append(*button); //vbox will delete button when vbox is deleted.
  * @endcode
  *
  * @param args Arguments to pass to the constructor of the given template type.