[NetworkManager-libreswan] properties: set advanced dialog modal

[Francesco Giudici <fgiudici src gnome org>]

commit eaf501ab7cb732a152097d2af5636b03fd3f029d
Author: Francesco Giudici <fgiudici redhat com>
Date:   Mon Apr 15 14:51:26 2019 +0200

    properties: set advanced dialog modal
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1697329

 properties/nm-libreswan-dialog.ui | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/properties/nm-libreswan-dialog.ui b/properties/nm-libreswan-dialog.ui
index 73522d4..e355c08 100644
--- a/properties/nm-libreswan-dialog.ui
+++ b/properties/nm-libreswan-dialog.ui
@@ -451,6 +451,8 @@
     <property name="can_focus">False</property>
     <property name="border_width">12</property>
     <property name="title" translatable="yes">IPsec Advanced Options</property>
+    <property name="modal">True</property>
+    <property name="destroy_with_parent">True</property>
     <property name="type_hint">dialog</property>
     <child internal-child="vbox">
       <object class="GtkBox" id="dialog-vbox1">