[gtk+] GMenu docs: Tiny grammar fix

[Murray Cumming <murrayc src gnome org>]

commit 22fe579d3757b2e356cef42029dbbf610f585d36
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Oct 11 10:25:24 2013 +0200

    GMenu docs: Tiny grammar fix

 gtk/gtkmenu.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkmenu.c b/gtk/gtkmenu.c
index f6b0c7a..304c42f 100644
--- a/gtk/gtkmenu.c
+++ b/gtk/gtkmenu.c
@@ -5614,8 +5614,8 @@ gtk_menu_get_reserve_toggle_size (GtkMenu *menu)
  * by means of being attached to a widget (see gtk_menu_attach_to_widget())
  * that is contained within the #GtkApplicationWindows widget hierarchy.
  *
- * Actions can also be added using gtk_widget_insert_action_group() on menu's
- * attach widget or any if its parent widgets.
+ * Actions can also be added using gtk_widget_insert_action_group() on the menu's
+ * attach widget or on any of its parent widgets.
  *
  * Returns: a new #GtkMenu
  *