[gnome-music/wip/jfelder/gd-warning] searchheaderbar: Fix Gd version warning

[Jean Felder <jfelder src gnome org>]

commit 41e5b3cc0f28275453531a1786ee0f81827425a7
Author: Jean Felder <jfelder src gnome org>
Date:   Mon Sep 2 22:07:21 2019 +0200

    searchheaderbar: Fix Gd version warning
    
    Follow-up of commit 6ca1fab45cddc66973dc3954c3872b195feb1b75.

 gnomemusic/widgets/searchheaderbar.py | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gnomemusic/widgets/searchheaderbar.py b/gnomemusic/widgets/searchheaderbar.py
index 0eb65c65..0e56443a 100644
--- a/gnomemusic/widgets/searchheaderbar.py
+++ b/gnomemusic/widgets/searchheaderbar.py
@@ -24,6 +24,8 @@
 
 from enum import IntEnum
 
+import gi
+gi.require_version("Gd", "1.0")
 from gi.repository import GLib, GObject, Gd, Gtk
 
 from gnomemusic import log