stream-logging not working for a run

A recent run in the test environment used `--stream-logging` and saw the notification in the console but a long running active command did not send output lines to the console.

```
13:26:55.537 Running qDup version 0.10.8 
...
13:27:10.796 stream logging enabled
```

The active command had several lines of output that did not appear in the console.