Very simple line-breaker

gistfile1.go

package main

import (
	"fmt"
	"strings"
	
)

var text = "I am a text that needs to be formatted. Please get started, I really can't wait to have so much fun with this. I also have some text that is supposed to  break everything, but that won't really happen, 'cus I'm a badass programmer."

const WIDTH = 50

func main(){
	slicedText := strings.Split(text, " ")
	widthLeft := WIDTH
	text := ""
	for i := range slicedText {
		currentWord := slicedText[i]
		if len(currentWord) + 1 >= widthLeft {
			widthLeft = WIDTH
			text += "\n"
		}
		text += slicedText[i] + " "
		widthLeft -= len(currentWord) + 1
	}
	fmt.Println(text)
}