[gtk+] emojichooser: Plug a memory leak

[Timm Bäder <baedert src gnome org>]

commit da701ede91bb6b96aa1b166af975e5806abf7551
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 d3d96b0..c1dcd61 100644
--- a/gtk/gtkemojichooser.c
+++ b/gtk/gtkemojichooser.c
@@ -304,7 +304,8 @@ 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 ();