[glib] Add some more annotations

[Matthias Clasen <matthiasc src gnome org>]

commit a54e2c4fb302ebbeae3e28c70f2342a57edb7521
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Aug 21 19:27:11 2010 -0400

    Add some more annotations

 gio/gactiongroup.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gio/gactiongroup.c b/gio/gactiongroup.c
index 2589e66..253d51b 100644
--- a/gio/gactiongroup.c
+++ b/gio/gactiongroup.c
@@ -335,7 +335,7 @@ g_action_group_get_enabled (GActionGroup *action_group,
  * The return value (if non-%NULL) should be freed with
  * g_variant_unref() when it is no longer required.
  *
- * Return value: the current state of the action
+ * Return value: (allow-none) (transfer-none): the current state of the action
  *
  * Since: 2.26
  **/