[gtk+] Update docs to match actual API

[Matthias Clasen <matthiasc src gnome org>]

commit a01a4df697321efb127a9162c5252305e6456df2
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 8 09:54:59 2009 -0400

    Update docs to match actual API
    
    Remove references to gtk_info_bar_set_contents(), and update
    the example to use gtk_info_bar_get_content_area().
---
 gtk/gtkinfobar.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/gtk/gtkinfobar.c b/gtk/gtkinfobar.c
index cf1cb42..ee3b33a 100644
--- a/gtk/gtkinfobar.c
+++ b/gtk/gtkinfobar.c
@@ -67,7 +67,7 @@
  * gtk_info_bar_new_with_buttons(). The sensitivity of action widgets
  * can be controlled with gtk_info_bar_set_response_sensitive().
  * To add widgets to the main content area of a #GtkInfoBar, use
- * gtk_info_bar_set_contents().
+ * gtk_info_bar_get_content_area() and add your widgets to the container.
  *
  * Similar to #GtkMessageDialog, the contents of a #GtkInfoBar can by
  * classified as error message, warning, informational message, etc,
@@ -82,7 +82,8 @@
  * gtk_widget_set_no_show_all (info_bar, TRUE);
  * message_label = gtk_label_new ("");
  * gtk_widget_show (message_label);
- * gtk_info_bar_set_contents (GTK_INFO_BAR (info_bar), message_label);
+ * content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
+ * gtk_container_add (GTK_CONTAINER (content_area), message_label);
  * gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
  *                          GTK_STOCK_OK, GTK_RESPONSE_OK);
  * g_signal_connect (info_bar, "response",