`list_padding` config option behaviour

https://github.com/haskell/stylish-haskell/blob/1c716235a72474c5a4e65b07f4f3a32602cda231/data/stylish-haskell.yaml#L234-L243

My understanding of this option with value 4 is that after newline on long import string after padding in 4 spaces must be things to import. e.g. from:
```
import Control.Exception (Exception, bracket_, throw)
```

to:
```
import Control.Exception (Exception, bracket_,
throw)
```

But it's seems like it's not the case with actual output with `stylish-haskell 0.12.2.0`:
```
import Control.Exception (Exception, bracket_,
throw)
```