[glib] Clarify the g_application_withdraw_notification docs

[Matthias Clasen <matthiasc src gnome org>]

commit a7bd6c47db8330fa0b88201ff4d9abf72fb10ef5
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 21 18:46:48 2013 -0400

    Clarify the g_application_withdraw_notification docs
    
    Mention that notifications are dismissed when activated.

 gio/gapplication.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gio/gapplication.c b/gio/gapplication.c
index d3132e1..0098281 100644
--- a/gio/gapplication.c
+++ b/gio/gapplication.c
@@ -2005,6 +2005,10 @@ g_application_send_notification (GApplication  *application,
  * executions of this application, as long @id is the same as it was for
  * the sent notification.
  *
+ * Note that notifications are dismissed when the user clicks on one
+ * of the buttons in a notification or triggers its default action, so
+ * there is no need to explicitly withdraw the notification in that case.
+ *
  * Since: 2.40
  */
 void