Replace tabs with spaces to fit coding standard

csharp/Mac/Facebook.Yoga.Mac.Test/AppDelegate.cs

@@ -3,20 +3,20 @@ using Foundation;
 
 namespace Facebook.Yoga.Mac.Test
 {
-	[Register("AppDelegate")]
-	public class AppDelegate : NSApplicationDelegate
-	{
-		public AppDelegate()
-		{
-		}
+    [Register("AppDelegate")]
+    public class AppDelegate : NSApplicationDelegate
+    {
+        public AppDelegate()
+        {
+        }
 
-		public override void DidFinishLaunching(NSNotification notification)
-		{
-		}
+        public override void DidFinishLaunching(NSNotification notification)
+        {
+        }
 
-		public override void WillTerminate(NSNotification notification)
-		{
-			// Insert code here to tear down your application
-		}
-	}
+        public override void WillTerminate(NSNotification notification)
+        {
+            // Insert code here to tear down your application
+        }
+    }
 }