[Golang] Fixed Width/Length String

package fixedwidth

import "fmt"

func FixedLengthString(length int, str string) string {
	verb := fmt.Sprintf("%%%d.%ds", length, length)
	return fmt.Sprintf(verb, str)
}

package fixedwidth

import "testing"

func TestFixedLengthString(t *testing.T) {
	println(FixedLengthString(20, "This is"))
	println(FixedLengthString(20, "an example of"))
	println(FixedLengthString(20, "fixed width/length"))
	println(FixedLengthString(20, "string"))
}