Move semaphore/waitgroup declaration closer to usage

go/stars/stars.go

		panic(err)
	}
	sem := make(chan bool, config.concurrency)
	var wg sync.WaitGroup
	hadErrors := false
	errors := make(chan error, config.concurrency)
	go func() {
		}
	}()
	sem := make(chan bool, config.concurrency)
	var wg sync.WaitGroup
	wg.Add(len(stars))
	for _, info := range stars {
		info := info