Better comments

Author: fhammerl

src/Runner.Listener/Runner.cs

@@ -413,7 +413,8 @@ private async Task<int> RunAsync(RunnerSettings settings, bool runOnce = false)
                                     if (StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_IS_MOCK_UPDATE")))
                                     {
 
-                                        // the mock_update_messages.json file should be of format { "2.283.2": {"targetVersion":"2.284.1"}, "2.284.1": {"targetVersion":"2.285.0"}}
+                                        // The mock_update_messages.json file should be an object with keys being the current version and values being the targeted mock version object
+                                        // Example: { "2.283.2": {"targetVersion":"2.284.1"}, "2.284.1": {"targetVersion":"2.285.0"}}
                                         var mockUpdatesPath = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), "mock_update_messages.json");
                                         if (File.Exists(mockUpdatesPath))
                                         {
@@ -422,9 +423,8 @@ private async Task<int> RunAsync(RunnerSettings settings, bool runOnce = false)
                                             {
                                                 var mockTargetVersion = mockUpdateMessages[BuildConstants.RunnerPackage.Version].TargetVersion;
                                                 _term.WriteLine($"Mocking update, using version {mockTargetVersion} instead of {runnerUpdateMessage.TargetVersion}");
+                                                Trace.Info($"Mocking update, using version {mockTargetVersion} instead of {runnerUpdateMessage.TargetVersion}");
                                                 runnerUpdateMessage = new AgentRefreshMessage(runnerUpdateMessage.AgentId, mockTargetVersion, runnerUpdateMessage.Timeout);
-                                                var temp = JsonUtility.ToString(mockUpdateMessages.Skip(1));
-                                                File.WriteAllText(mockUpdatesPath, JsonUtility.ToString(mockUpdateMessages.Skip(1)));
                                             }
                                         }
                                     }