Correct return type for Iterator in lazyMap example of Views section #590
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The function in the example maps a function T => U on the given Iterable
of type T, and should return an Iterable of type U.
This was mentioned in one of the comments over at http://docs.scala-lang.org/overviews/collections/views.html. I figured I'd make a pull request since I too stalled on this example.