Optimizing string concatenation calls on wadler.ex
Optimizing string concatenation calls on wadler.ex

* Modified render method to render sdoc records to a string list
  followed by a Enum.join call.

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