Fizzbuzz in scala

fizzbuzz.scala

object FizzBuzz extends App {
  def fizzbuzz(line: String) = {
       val Array(a,b,n) = line.split(" ").map(_.toInt)
       (1 to n).map(x => 
         (x%a,x%b) match {
           case (0,0) => "FB"
           case (0,_) => "F"
           case (_,0) => "B"
           case _ => x
         }
       )
  }
  val source = scala.io.Source.fromFile(args(0))
  val res = source.getLines.map(fizzbuzz(_).mkString(" "))
  res.foreach(println(_))
}