[libnotify] Clarify docs of notify_notification_set_timeout

[Matthias Clasen <matthiasc src gnome org>]

commit 91280420269c98e408adc0db1e1d1e74cf24c71c
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jun 7 20:28:10 2013 -0400

    Clarify docs of notify_notification_set_timeout
    
    In response to
    https://bugzilla.gnome.org/show_bug.cgi?id=701645

 libnotify/notification.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/libnotify/notification.c b/libnotify/notification.c
index 6f36402..d9e9283 100644
--- a/libnotify/notification.c
+++ b/libnotify/notification.c
@@ -632,6 +632,8 @@ notify_notification_show (NotifyNotification *notification,
  * Sets the timeout of the notification. To set the default time, pass
  * %NOTIFY_EXPIRES_DEFAULT as @timeout. To set the notification to never
  * expire, pass %NOTIFY_EXPIRES_NEVER.
+ *
+ * Note that the timeout may be ignored by the server.
  */
 void
 notify_notification_set_timeout (NotifyNotification *notification,