Keeping the deriving clause of a record on the same line as the closing curly brace

Hi, I just upgraded to the latest stylish-haskell binary, but I would like to keep the previous behaviour where, in the case of a sole deriving clause, said clause is kept on the same line as the closing curly brace of the record.

Right now, the current settings produce this kind of formatting

```haskell
data Test
= Test { top :: Int
, bottom :: String
}
deriving (Show)
````

Which I personally find quite awkward.

Would you be open to a pull request implementing a configuration option for this behaviour?