[gnome-boxes] vm-configurator: Hardcode xmlns URI

[Felipe Borges <felipeborges src gnome org>]

commit 83563efb49b09ce67db0130ee6d02ab20af08d7b
Author: Cole Robinson <crobinso redhat com>
Date:   Wed Sep 5 15:41:01 2018 -0400

    vm-configurator: Hardcode xmlns URI
    
    Don't use PACKAGE_URL; if it changes in the future and this usage
    site isn't change, boxes won't be able to read it's pre-existing
    VM metadata. In fact it appears this already happened, see
    912ff3ec520e
    
    An xmlns URI doesn't need to actually be resolvable, just unique.
    So let's hardcode the current value and never change it

 src/vm-configurator.vala | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/src/vm-configurator.vala b/src/vm-configurator.vala
index 3090e138..dcff9d5e 100644
--- a/src/vm-configurator.vala
+++ b/src/vm-configurator.vala
@@ -9,7 +9,9 @@
 
 private class Boxes.VMConfigurator {
     private const string BOXES_NS = "boxes";
-    private const string BOXES_NS_URI = Config.PACKAGE_URL;
+    /* This should not reference PACKAGE_URL, which could change in the
+       future, but this is effectively part of boxes XML API */
+    private const string BOXES_NS_URI = "https://wiki.gnome.org/Apps/Boxes";;
     private const string BOXES_OLD_NS_URI = "http://live.gnome.org/Boxes/";;
     private const string WEBDAV_CHANNEL_URI = "org.spice-space.webdav.0";
     private const string BOXES_XML = "<gnome-boxes>%s</gnome-boxes>";