Hello World Variations

package main

import (
	"fmt"
	"runtime"
	"time"
)

func greeting(name string) string {
	return fmt.Sprintf("Hello, %s!", name)
}

func main() {
	name := "AzLearn"
	today := time.Now().Format("2006-01-02")

	fmt.Println(greeting(name))
	fmt.Println("Welcome to Go rebuild drills.")
	fmt.Printf("Running on %s with Go %s\n", runtime.GOOS, runtime.Version())
	fmt.Printf("Today is %s\n", today)
}