1	//gofmt -stdin
2
3	if err != nil {
4		source := strings.NewReader(`line 1.
5line 2.
6`)
7		return source
8	}
9
10	f:=func(  hat, tail string){
11
12
13
14		   fmt.  Println  (   hat+   `
15foo
16
17
18`+ tail  ,
19 "more" ,
20		"and more"   )
21	}
22