[gnome-font-viewer] font-model: avoid a runtime warning

[Cosimo Cecchi <cosimoc src gnome org>]

commit 9b6925264391b41fdefc7f77fa032c4b1f82aac4
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Sat Nov 21 13:38:46 2015 -0800

    font-model: avoid a runtime warning

 src/font-model.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/font-model.c b/src/font-model.c
index d17dc30..4e0d2b2 100644
--- a/src/font-model.c
+++ b/src/font-model.c
@@ -334,8 +334,7 @@ ensure_fallback_icon (FontViewModel *self)
     icon_theme = gtk_icon_theme_get_default ();
     icon = g_content_type_get_icon ("application/x-font-ttf");
     icon_info = gtk_icon_theme_lookup_by_gicon_for_scale (icon_theme, icon,
-                                                          128, self->priv->scale_factor,
-                                                          GTK_ICON_LOOKUP_GENERIC_FALLBACK);
+                                                          128, self->priv->scale_factor, 0);
     g_object_unref (icon);
 
     if (!icon_info)