func (l ChrootLoader) Abs(base string, name string) string {
	return filepath.Clean(fmt.Sprintf("%s/%s", l.Path, name))
}
func (l ChrootLoader) Abs(base string, name string) string {
	return filepath.Clean(fmt.Sprintf("%s/%s", l.Path, name))
}
// Abs resolves a filename relative to the base directory. Absolute paths are allowed.
// When there's no base dir set, the absolute path to the filename
// will be calculated based on either the provided base directory (which
// might be a path of a template which includes another template) or
// the current working directory.