Odd formatting choice for multiline functions' closing parenthesis

If I create a jsonnet file with:
```jsonnet
local asd(
  x=1
) = {
  hello: x,
};
asd(x=4)
```

It gets auto-formatted to:
```jsonnet
local asd(
  x=1
      ) = {
  hello: x,
};
asd(x=4)
```

Which is really weird.