file/edit.go
func CommentOutM(filename string, reLine []string) error {
	e, err := NewEdit(filename)
	if err != nil {
		return err
	}

	err = e.CommentOut(reLine)
	err2 := e.Close()
	if err != nil {
		return err
	}
	return err2
}
func CommentOutM(filename string, reLine []string) error {
	e, err := NewEdit(filename)
	if err != nil {
		return err
	}

	err = e.CommentOut(reLine)
	err2 := e.Close()
	if err != nil {
		return err
	}
	return err2
}
// CommentOutM removes the comment character of lines that mach any regular expression
// in reLine, in the named file.