[gtk: 1/2] gtk-demo: Fix incorrect use of g_strdup_printf

[Timm Bäder <baedert src gnome org>]

commit 25e4174a3849dc73d64570f8c73b4c8b441b5ca5
Author: Robert Ancell <robert ancell canonical com>
Date:   Tue Nov 26 10:11:28 2019 +1300

    gtk-demo: Fix incorrect use of g_strdup_printf
    
    Was broken in a refactoring in 4a2f313

 demos/gtk-demo/font_features.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/demos/gtk-demo/font_features.c b/demos/gtk-demo/font_features.c
index 3fdc0ec558..ebc99c0f99 100644
--- a/demos/gtk-demo/font_features.c
+++ b/demos/gtk-demo/font_features.c
@@ -880,7 +880,7 @@ add_instance (hb_face_t    *face,
   name_id = hb_ot_var_named_instance_get_subfamily_name_id (face, index);
   hb_ot_name_get_utf8 (face, name_id, HB_LANGUAGE_INVALID, &name_len, name);
 
-  instance->name = g_strdup_printf (name);
+  instance->name = g_strdup (name);
   instance->index = index;
 
   g_hash_table_add (instances, instance);