Fix bad conditional logic when checking for +iex
Fix bad conditional logic when checking for +iex

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