review.go

// question for you is there a difference between,
	var records [][]string
	var wg sync.WaitGroup
	for _, r := range records {
		wg.Add(1)
		go func(record []string) {
			host, desc := record[0], record[1]
			defer wg.Done()
			fmt.Println(host)
			fmt.Println(desc)
			// do something with that data

		}(r)
	}
	// or this style
	for _, r := range records {
		host, desc := r[0], r[1]
		wg.Add(1)
		go func() {
			defer wg.Done()
			// do something with host, desc
			fmt.Println(host)
			fmt.Println(desc)

		}()
	}