[gtk+/gtk-3-4] Document removing of accelerators

[Matthias Clasen <matthiasc src gnome org>]

commit e344f795b443a8f38190b444fbc3abe71e5656e2
Author: Holger Berndt <hb gnome org>
Date:   Thu May 17 16:12:55 2012 +0200

    Document removing of accelerators
    
    https://bugzilla.gnome.org/show_bug.cgi?id=676243

 gtk/gtkaccelmap.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkaccelmap.c b/gtk/gtkaccelmap.c
index 5ab19b5..8dcdc5b 100644
--- a/gtk/gtkaccelmap.c
+++ b/gtk/gtkaccelmap.c
@@ -207,6 +207,9 @@ _gtk_accel_path_is_valid (const gchar *accel_path)
  * To change the accelerator during runtime programatically, use
  * gtk_accel_map_change_entry().
  * 
+ * Set @accel_key and @accel_mods to 0 to request a removal of
+ * the accelerator.
+ *
  * Note that @accel_path string will be stored in a #GQuark. Therefore, if you
  * pass a static string, you can save some memory by interning it first with 
  * g_intern_static_string().