}
	mode := stat.Mode()
	if !mode.IsRegular() {
		return ErrPermission
	}
	if (mode & 0111) == 0 {
		return ErrPermission
	}
	return nil
}

// splitPathList splits a path list.
// This is based on genSplit from strings/strings.go
func splitPathList(pathList string) []string {
	if pathList == "" {
		return nil
	}
	n := 1
	for i := 0; i < len(pathList); i++ {
		if pathList[i] == PathListSeparator {
			n++