[gtk+] Correct a deprecation note

[Matthias Clasen <matthiasc src gnome org>]

commit 7018a41ce9aebcb31ae082c06a1e9d4d7004a6da
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Mar 15 09:03:21 2016 -0400

    Correct a deprecation note
    
    The CSS equivalent for focus-padding is outline-offset.

 gtk/gtkwidget.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index a7048ff..b7346e1 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -3484,7 +3484,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
    * The "focus-padding" style property defines the width, in pixels,
    * between focus indicator and the widget 'box'.
    *
-   * Deprecated: 3.14: use the padding CSS properties instead.
+   * Deprecated: 3.14: use the outline-offset CSS properties instead.
    */
   gtk_widget_class_install_style_property (klass,
                                           g_param_spec_int ("focus-padding",