Fix the documentation for Stream.drop_while/2 and Stream.take_while/2
Fix the documentation for Stream.drop_while/2 and Stream.take_while/2

lexmag/elixir,joshprice/elixir,pedrosnk/elixir,beedub/elixir,ggcampinho/elixir,michalmuskala/elixir,ggcampinho/elixir,kimshrier/elixir,gfvcastro/elixir,kelvinst/elixir,gfvcastro/elixir,antipax/elixir,pedrosnk/elixir,lexmag/elixir,elixir-lang/elixir,kimshrier/elixir,antipax/elixir,kelvinst/elixir,beedub/elixir