Use TLS1.1 and TLS1.0, improve readability of update script

Author: LouisMT

Core.cs

@@ -307,8 +307,14 @@ private void StartUpdate(object sender, EventArgs e)
                     updateClient.DownloadFile(Settings.Default.ExecutableUrl, tempNfu);
                 }
 
-                File.WriteAllText(tempCmd, string.Format("@ECHO OFF{3}TITLE {0}{3}ECHO {1}{3}TIMEOUT /T 5{3}ECHO.{3}ECHO {2}{3}COPY /B /Y \"{4}\" \"{5}\"{3}START \"\" \"{5}\"",
-                    Resources.UpdateTitle, Resources.WaitingToExit, Resources.Updating, Environment.NewLine, tempNfu, Application.ExecutablePath));
+                File.WriteAllText(tempCmd, $"@ECHO OFF{Environment.NewLine}" +
+                                           $"TITLE {Resources.UpdateTitle}{Environment.NewLine}" +
+                                           $"ECHO {Resources.WaitingToExit}{Environment.NewLine}" +
+                                           $"TIMEOUT /T 5{Environment.NewLine}" +
+                                           $"ECHO.{Environment.NewLine}" +
+                                           $"ECHO {Resources.Updating}{Environment.NewLine}" +
+                                           $"COPY /B /Y \"{tempNfu}\" \"{Application.ExecutablePath}\"{Environment.NewLine}" +
+                                           $"START \"\" \"{Application.ExecutablePath}\"");
 
                 var startInfo = new ProcessStartInfo
                 {

Program.cs

@@ -40,8 +40,8 @@ static void Main(string[] args)
             Application.EnableVisualStyles();
             Application.SetCompatibleTextRenderingDefault(false);
 
-            // Use TLS 1.2
-            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+            // Use TLS 1.2, TLS 1.1 and TLS 1.0
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
 
             // Automatically save settings on change
             Settings.Default.PropertyChanged += (sender, e) =>