Rename `print_doc_arg` to `format_doc_arg`
Rename `print_doc_arg` to `format_doc_arg`

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