Fix indentation with lambda argument, Fix #622

[yukukotani]

Resolve #622

Current

// 5:1: Unexpected indentation (16) (should be 12)
// 6:1: Unexpected indentation (12) (should be 8)
class Example {
    fun example() {
        Integer
            .parseInt("32").let {
                println("parsed $it")
            }
    }
}

// Formatted
class Example {
    fun example() {
        Integer
            .parseInt("32").let {
            println("parsed $it")
        }
    }
}

Patched

// No Error
class Example {
    fun example() {
        Integer
            .parseInt("32").let {
                println("parsed $it")
            }
    }
}

[Tapchicoma]

Thank you for constantly fixing the bugs in rules!