Optimize rstrip for ascii chars
Optimize rstrip for ascii chars

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