InputStreamOps#asString doesn't close the stream on exception

[liff]

This will leak a file handle:

import java.io.{File => JFile, FileInputStream}
import better.files._

class BrokenFileInputStream(file: JFile) extends FileInputStream(file) {
  override def read(b: Array[Byte]): Int = throw new Exception("ouch")
}

val stream = new BrokenFileInputStream(new JFile("hello.txt")) // assuming hello.txt exists
stream.asString(closeStream = true)

Saying closeStream = true means the stream should be closed regardless of whether there was an exception or not?