standards-c-sharp

Use `await task` instead of `task.Result`

To get the result of a task, prefer await task over task.Result.
await does not wrap the exception in an AggregateException, whereas Task.Result does. Ideally, we should never have to deal with an AggregateException at all.
Task.Result blocks until the task has completed. await never blocks.
Task.Result can cause deadlocks in certain situations.
Another method to retrieve the result is Task.GetAwaiter().GetResult(). This does not wrap the exception, but still suffers from blocking behavior and potential for deadlocks, so should not be used.

var task = DownloadFileAsync("...");
var result = task.Result;

var task = DownloadFileAsync("...");
var result = await task;