[mutter] prefs: Annotate meta_prefs_get_button_layout()

[Florian MÃllner <fmuellner src gnome org>]

commit a6c51addace59840dfe0cb6a12fe03d86d216ac8
Author: Florian MÃllner <fmuellner gnome org>
Date:   Wed Nov 28 23:32:09 2012 +0100

    prefs: Annotate meta_prefs_get_button_layout()
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689263

 src/core/prefs.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/core/prefs.c b/src/core/prefs.c
index 1a79414..cce1820 100644
--- a/src/core/prefs.c
+++ b/src/core/prefs.c
@@ -1935,6 +1935,10 @@ meta_prefs_change_workspace_name (int         num,
                         g_variant_builder_end (&builder));
 }
 
+/**
+ * meta_prefs_get_button_layout:
+ * @button_layout: (out):
+ */
 void
 meta_prefs_get_button_layout (MetaButtonLayout *button_layout_p)
 {