Fix compiler warning about non-exhaustive match
Fix compiler warning about non-exhaustive match

src/test/scala/scala/xml/ReuseNodesTest.scala:86: match may not be exhaustive.
It would fail on the following inputs: (List(_), Nil), (Nil, List(_))
    (original.toList,transformed.toList) match {
    ^
one warning found

ashawley/scala-xml