It's perfectly fine for bench_literals.go to be a main package itself,
but the scripts directory doesn't need to be a Go package
This was bothering me at times; for example, "go list ./..." would
show the scripts directory, or "go install mvdan.cc/garble/..." would
build and install a "scripts" binary as well.
The file can still be built or run directly, like either of:
go build bench_literals.go
go run bench_literals.go