swift234

[Python] Fix two small PEP8 violations in recently introduced file "rth"

Before this commit:

```
$ flake8
./utils/rth:34:17: E127 continuation line over-indented for visual indent
./utils/rth:67:27: E127 continuation line over-indented for visual indent
$
```

After this commit:

```
$ flake8
$
```