[gtk+/gtk-3-22] emojichooser: Plug a memory leak

[Daniel Boles <dboles src gnome org>]

commit 3501a7ea41e57163b37f1ff2cbd46621168b8ddd
Author: Timm Bäder <mail baedert org>
Date:   Sun Sep 24 18:15:41 2017 +0200

    emojichooser: Plug a memory leak

 gtk/gtkemojichooser.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkemojichooser.c b/gtk/gtkemojichooser.c
index 3f74f57..202ae09 100644
--- a/gtk/gtkemojichooser.c
+++ b/gtk/gtkemojichooser.c
@@ -336,7 +336,8 @@ add_emoji (GtkWidget    *box,
       if (code != 0)
         p += g_unichar_to_utf8 (code, p);
     }
-   p[0] = 0;
+  g_variant_unref (codes);
+  p[0] = 0;
 
   label = gtk_label_new (text);
   attrs = pango_attr_list_new ();