[clutter-gtk/wip/hadess/use-layout-size-doc] embed: Fix GtkClutterEmbed:use-layout-size API doc

[Bastien Nocera <hadess src gnome org>]

commit db8b8538f1bca9506335faaa56fec9a7a0fd275b
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Feb 14 12:21:50 2019 +0100

    embed: Fix GtkClutterEmbed:use-layout-size API doc
    
    The documentation was cut'n'paste from somewhere else, and didn't even
    match in terms of types.

 clutter-gtk/gtk-clutter-embed.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/clutter-gtk/gtk-clutter-embed.c b/clutter-gtk/gtk-clutter-embed.c
index 5979847..65c6a5d 100644
--- a/clutter-gtk/gtk-clutter-embed.c
+++ b/clutter-gtk/gtk-clutter-embed.c
@@ -1093,7 +1093,8 @@ gtk_clutter_embed_class_init (GtkClutterEmbedClass *klass)
   /**
    * GtkClutterEmbed:use-layout-size:
    *
-   * The #GtkWidget to be embedded into the #GtkClutterActor
+   * Whether to use the reported size of the LayoutManager on the stage as the widget size.
+   * See gtk_clutter_embed_set_use_layout_size() for details.
    *
    * Since: 1.4
    */