fix trailing whitespace everywhere

OpenRA.Renderer.Null/NullGraphicsDevice.cs

@@ -1,7 +1,7 @@
 #region Copyright & License Information
 /*
  * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made 
+ * This file is part of OpenRA, which is free software. It is made
  * available to you under the terms of the GNU General Public License
  * as published by the Free Software Foundation. For more information,
  * see COPYING.
@@ -57,7 +57,7 @@ namespace OpenRA.Renderer.Null
 
 		public int GpuMemoryUsed { get { return 0; } }
 	}
-	
+
 	public class NullShader : IShader
 	{
 		public void SetValue(string name, float x, float y) { }
@@ -65,14 +65,14 @@ namespace OpenRA.Renderer.Null
 		public void Commit() { }
 		public void Render(Action a) { }
 	}
-	
+
 	public class NullTexture : ITexture
 	{
 		public void SetData(Bitmap bitmap) { }
 		public void SetData(uint[,] colors) { }
 		public void SetData(byte[] colors, int width, int height) { }
 	}
-	
+
 	class NullVertexBuffer<T> : IVertexBuffer<T>
 	{
 		public void Bind() { }