Is it possible to hide stdout when aligning?

When running this library the stdout looks similar to the following:

```
ARG=i
ARG=v
ARG=d
ARG=o
INITIAL PASS
.................................................. [50000]
.................................................. [100000]
.................................................. [150000]
.................................................. [200000]
expected target length = source length * 3.7347
```

Is there an option to hide this?

The issue names no source file, test, or entry point. Start by locating where the aligner's progress and diagnostic lines are written to stdout, then determine how an option could suppress them; done means the output can be hidden when requested.

Written by the indexing model from the issue text.