NodeUtil: hide clang's warning -Wsign-conversion with explicit cast
NodeUtil: hide clang's warning -Wsign-conversion with explicit cast

thomastrapp/hext,thomastrapp/hext,thomastrapp/hext,thomastrapp/hext,thomastrapp/hext,thomastrapp/hext,thomastrapp/hext,thomastrapp/hext