Fix ambiguous 1st argument warnings in Ruby 2.3.x
Fix ambiguous 1st argument warnings in Ruby 2.3.x

aceunreal/geocoder,donbobka/geocoder,Devetzis/geocoder,rdlugosz/geocoder,TrangPham/geocoder,ankane/geocoder,tiramizoo/geocoder,alexreisner/geocoder,brian-ewell/geocoder