[gnome-desktop: 5/6] Don't leak properties in output_initialize

[Jonas Ådahl <jadahl src gnome org>]

commit b69f1317959ea6141130d778c4a45faeb5aab17f
Author: Sam Morris <sam robots org uk>
Date:   Mon Jul 16 12:00:14 2018 +0100

    Don't leak properties in output_initialize
    
    https://gitlab.gnome.org/GNOME/gnome-desktop/issues/6

 libgnome-desktop/gnome-rr.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/libgnome-desktop/gnome-rr.c b/libgnome-desktop/gnome-rr.c
index f50ddaa1..dca50694 100644
--- a/libgnome-desktop/gnome-rr.c
+++ b/libgnome-desktop/gnome-rr.c
@@ -1431,6 +1431,8 @@ output_initialize (GnomeRROutput *output, GVariant *info)
 
     if (output->is_primary)
        output->info->primary = output;
+
+    g_variant_unref (properties);
 }
 
 static GnomeRROutput*