[gnome-boxes] Remove usage of a deprecated method

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 23e08526a079580332173e912968d47fe1623c4a
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Wed Oct 5 15:47:05 2011 +0300

    Remove usage of a deprecated method

 src/box.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/box.vala b/src/box.vala
index a0adf81..41a7bad 100644
--- a/src/box.vala
+++ b/src/box.vala
@@ -187,7 +187,7 @@ private class Boxes.Box: Boxes.CollectionItem {
         }
 
         if (type == "spice") {
-            display = new SpiceDisplay (ghost, gport.to_int ());
+            display = new SpiceDisplay (ghost, int.parse (gport));
         } else {
             warning ("unsupported display of type " + type);