[gnome-boxes] installed-media: Fix a typo in user-visible string

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 239f6bc53d876470208ad1f63aa085495909514e
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Aug 19 16:21:32 2013 +0300

    installed-media: Fix a typo in user-visible string
    
    https://bugzilla.gnome.org/show_bug.cgi?id=706306

 src/installed-media.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/installed-media.vala b/src/installed-media.vala
index 2c39cf4..e707232 100644
--- a/src/installed-media.vala
+++ b/src/installed-media.vala
@@ -45,7 +45,7 @@ private class Boxes.InstalledMedia : Boxes.InstallerMedia {
         }
 
         if (!supported)
-            throw new Boxes.Error.INVALID (_("Unsupoorted disk image format."));
+            throw new Boxes.Error.INVALID (_("Unsupported disk image format."));
 
         device_file = path;
         from_image = true;