exercism/go/two-fer/two_fer.go

package twofer

import "fmt"

// ShareWith just returns "One for <who>, one for me."
// if <who> is empty, use "you"
func ShareWith(who string) string {
	ret := "One for %s, one for me."
	if who == "" {
		who = "you"
	}
	return fmt.Sprintf(ret, who)
}