Escape Unicode chars in String, closes #9039
Escape Unicode chars in String, closes #9039

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