better verbose output

uncrust.go

@@ -56,11 +56,12 @@ func main() {
 	cmd.Stdout = stdout
 	cmd.Stderr = stderr
 
+	samfile = filepath.Base(samfile)
+
 	if e = cmd.Run(); e != nil {
 		if _, ok := e.(*exec.ExitError); ok {
 			str := stderr.String()
 			if len(samfile) != 0 {
-				samfile = "./" + filepath.Base(samfile)
 				str = strings.ReplaceAll(str, "stdin, open_line is ", samfile+":")
 				str = pos_rx.ReplaceAllString(str, fmt.Sprintf("%s:$1:#$2", samfile))
 			}
@@ -117,7 +118,7 @@ func main() {
 func pretty(e []textdiff.Edit, p string) string {
 	b := &bytes.Buffer{}
 	for _, e := range e {
-		fmt.Fprintf(b, "%s:#%d,#%d\n", p, e.Start, e.End)
+		fmt.Fprintf(b, "%s:#%d,#%d: »%s«\n", p, e.Start, e.End, e.New)
 	}
 	return b.String()
 }