Update copyright year

Pinta/Actions/Help/AboutDialogAction.cs

@@ -1,21 +1,21 @@
-// 
+//
 // AboutDialogAction.cs
-//  
+//
 // Author:
 //       Jonathan Pobst <[email protected]>
-// 
+//
 // Copyright (c) 2010 Jonathan Pobst
-// 
+//
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
-// 
+//
 // The above copyright notice and this permission notice shall be included in
 // all copies or substantial portions of the Software.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -66,7 +66,7 @@ private void Activated (object sender, EventArgs e)
 
 		private string BuildCopyrightText ()
 		{
-			return string.Format ("{0} (c) 2010-2023 {1}",
+			return string.Format ("{0} (c) 2010-2024 {1}",
 				Translations.GetString ("Copyright"),
 				Translations.GetString ("by Pinta contributors"));
 		}