[gtk+] docs: use correct signal name in docs

[William Jon McCann <mccann src gnome org>]

commit ce941736da968d8ce58e1f4ce2e77ba84bf36205
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 21 15:56:13 2014 -0500

    docs: use correct signal name in docs

 gtk/gtkplacessidebar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index 6d6184f..8f8c3d0 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -4522,7 +4522,7 @@ gtk_places_sidebar_set_location (GtkPlacesSidebar *sidebar,
  * show.
  *
  * You can use this function to get the selection in the @sidebar.  Also, if you
- * connect to the #GtkPlacesSidebar::popup-menu signal, you can use this
+ * connect to the #GtkPlacesSidebar::populate-popup signal, you can use this
  * function to get the location that is being referred to during the callbacks
  * for your menu items.
  *