[tomboy/gnome-2-26] Add missing using statement.

[Sanford Armstrong <sharm src gnome org>]

commit ab3e8180d8013b535a63682b98b0088441e16224
Author: Sandy Armstrong <sanfordarmstrong gmail com>
Date:   Mon May 11 07:55:11 2009 -0700

    Add missing using statement.
---
 Tomboy/Logger.cs |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/Tomboy/Logger.cs b/Tomboy/Logger.cs
index 6cda0f4..560fafd 100644
--- a/Tomboy/Logger.cs
+++ b/Tomboy/Logger.cs
@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Runtime.InteropServices;
 
 namespace Tomboy
 {