Fix test on earlier OTP versions
Fix test on earlier OTP versions

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