final Attr attr = (Attr) attrs.item(i);
            buf.append(' ');
            appendAttr(attr, buf);
        }
    }

    /**
     * {@link Attr}の文字列表現を追加します。
     *
     * @param attr
     *            属性。{@literal null}であってはいけません
     * @param buf
     *            文字列バッファ。{@literal null}であってはいけません
     */
    public static void appendAttr(final Attr attr, final StringBuilder buf) {

ldap.attr.postalAddress=postalAddress
ldap.attr.city=l
ldap.attr.teletexTerminalIdentifier=teletexTerminalIdentifier
ldap.attr.x121Address=x121Address
ldap.attr.businessCategory=businessCategory
ldap.attr.registeredAddress=registeredAddress
ldap.attr.displayName=displayName
ldap.attr.preferredLanguage=preferredLanguage
ldap.attr.departmentNumber=departmentNumber
ldap.attr.uidNumber=uidNumber
ldap.attr.gidNumber=gidNumber