Correct doc, add spec and update TODO comment in System.stacktrace/0 (#10112)
Correct doc, add spec and update TODO comment in System.stacktrace/0 (#10112)


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