[pybliographer/wip/gtk3] utils: Use Close button for error dialogs

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 38a7a490bdf57170899231078857e427997f350a
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Tue Oct 10 13:59:27 2017 -0300

    utils: Use Close button for error dialogs

 Pyblio/GnomeUI/Utils.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/Pyblio/GnomeUI/Utils.py b/Pyblio/GnomeUI/Utils.py
index 81ffe77..2961265 100644
--- a/Pyblio/GnomeUI/Utils.py
+++ b/Pyblio/GnomeUI/Utils.py
@@ -208,7 +208,7 @@ def error_dialog_s(parent, primary, secondary=None):
     dialog = Gtk.MessageDialog(parent,
                                Gtk.DialogFlags.MODAL | Gtk.DialogFlags.DESTROY_WITH_PARENT,
                                Gtk.MessageType.ERROR,
-                               Gtk.ButtonsType.CANCEL, primary)
+                               Gtk.ButtonsType.CLOSE, primary)
     if secondary:
         dialog.format_secondary_text(secondary)
     dialog.run()