[longomatch] Fix gettext string

[Andoni Morales Alastruey <amorales src gnome org>]

commit 6b6c325feb734b5171e5b51c25d6f45d6682b857
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Fri Nov 21 17:08:07 2014 +0100

    Fix gettext string

 LongoMatch.Core/Common/Exceptions.cs |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/LongoMatch.Core/Common/Exceptions.cs b/LongoMatch.Core/Common/Exceptions.cs
index 5a93566..23f6c02 100644
--- a/LongoMatch.Core/Common/Exceptions.cs
+++ b/LongoMatch.Core/Common/Exceptions.cs
@@ -74,7 +74,7 @@ namespace LongoMatch.Core.Common
        public class HotkeyAlreadyInUse: Exception
        {
                public HotkeyAlreadyInUse (HotKey hotkey):
-                       base (Catalog.GetString("Hotkey already in use: " + hotkey))
+                       base (Catalog.GetString("Hotkey already in use: ") + hotkey)
                {
                }
        }