Update rebar executable with utf-8 env fixes
Update rebar executable with utf-8 env fixes

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