Do not execute :rand.uniform/1 at the time the docs are defined
Do not execute :rand.uniform/1 at the time the docs are defined

Closes #8689

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