[glib] Make g_variant_builder_end's return to be (allow none) because callers need to add a ref to it in ad

[Tomeu Vizoso <tomeuv src gnome org>]

commit 124023b06d39c5b94605368abd8f9576ece45ca4
Author: Tomeu Vizoso <tomeu vizoso collabora co uk>
Date:   Mon Sep 13 17:53:54 2010 +0200

    Make g_variant_builder_end's return to be (allow none) because callers
    need to add a ref to it in addition to sinking it.

 glib/gvariant.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glib/gvariant.c b/glib/gvariant.c
index bbfa95c..133bfa1 100644
--- a/glib/gvariant.c
+++ b/glib/gvariant.c
@@ -3056,7 +3056,7 @@ g_variant_make_array_type (GVariant *element)
 /**
  * g_variant_builder_end:
  * @builder: a #GVariantBuilder
- * @returns: a new, floating, #GVariant
+ * @returns: (transfer none): a new, floating, #GVariant
  *
  * Ends the builder process and returns the constructed value.
  *