button: fix variable name in function declaration

Or gtk-doc/introspection scanners will complain.

diff --git a/gtk/gtkbutton.h b/gtk/gtkbutton.h
index 96f500036b88ddffb38bcc7c47ee9ab101095127..e97ad5f01eae4d5187415ad59bbf1242a98775aa 100644 (file)
--- a/gtk/gtkbutton.h
+++ b/gtk/gtkbutton.h
@@ -118,7 +118,7 @@ void                  gtk_button_set_image_position (GtkButton      *button,
 GtkPositionType       gtk_button_get_image_position (GtkButton      *button);
 void                  gtk_button_set_always_show_image (GtkButton   *button,
                                                         gboolean     always_show);
-gboolean              gtk_button_get_always_show_image (GtkButton   *image_menu_item);
+gboolean              gtk_button_get_always_show_image (GtkButton   *button);
 
 GdkWindow*            gtk_button_get_event_window   (GtkButton      *button);