Should continuation indentation be 2 or 4 spaces?

i.e., should code look like this: (2 spaces)

fun f() {
  val x =
    43
  aVeryLongFunctionName(
    a, b, c, d, e)
}

or like this? (4 spaces)

fun f() {
  val x =
      43
  aVeryLongFunctionName(
      a, b, c, d, e)
}

In favor of 2 spaces:

1. That’s what IntelliJ’s code conventions define. We don’t know the reasons. It could be that it’s just simpler this way.

In favor of 4 spaces:

1. It’s looks more like Java.
2. Given ktfmt, it’s as easy to format with 4 as it is with 2.

[sgrimm]

I’m in favor of 4 as well not because of Java similarity but because I find

aFunctionWithAFinalFunctionArgument(
    a, b, c, d, e) {
  doOtherStuff()
}

more readable than

aFunctionWithAFinalFunctionArgument(
  a, b, c, d, e) {
  doOtherStuff()
}

[strulovich]

Do we have any discussion going here? If not, we should close. We do have double continuation in some cases now:

makeCall(
        arg1, arg2, arg3)
    .doMore()