Fix spaces

Author: nohwnd

src/Cli/dotnet/commands/dotnet-test/Terminal/AnsiTerminalTestProgressFrame.cs

@@ -189,7 +189,9 @@ public void Render(AnsiTerminalTestProgressFrame previousFrame, TestProgressStat
 
         // When there is nothing to render, don't write empty lines, e.g. when we start the test run, and then we kick off build
         // in dotnet test, there is a long pause where we have no assemblies and no test results (yet).
-        if (progress.Length > 0)
+        //
+        // We do pre-allocate the array so it is full of nulls once we allocate it but don't have any items to render yet.
+        if (progress.Length > 0 && progress.Any(i => i != null))
         {
             terminal.AppendLine();
         }

src/Cli/dotnet/commands/dotnet-test/TestingPlatformCommand.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.CommandLine;
+using System.Diagnostics;
 using Microsoft.DotNet.Tools.Test;
 using Microsoft.TemplateEngine.Cli.Commands;
 using Microsoft.Testing.Platform.Helpers;

src/Cli/dotnet/commands/dotnet-test/VSTestTrace.cs

@@ -27,7 +27,7 @@ public static void SafeWriteTrace(Func<string> messageLog)
 
             try
             {
-                string message = $"[dotnet test - {DateTimeOffset.UtcNow}]{messageLog()}";
+                string message = $"[dotnet test - {DateTimeOffset.UtcNow.ToString(format: "MM/dd/yyyy HH:mm:ss.fff")}]{messageLog()}";
                 if (!string.IsNullOrEmpty(s_traceFilePath))
                 {
                     lock (s_traceFilePath)