correct license header

<?php

/*

 * FILE NAME  : read_imu_log.php

 * DESCRIPTION: parse imu log from Elphel 10393 (and 10353)

 * VERSION: 1.0

 * AUTHOR: Oleg K Dzhimiev <oleg@elphel.com>

 * LICENSE: AGPL, see http://www.gnu.org/licenses/agpl.txt

 * Copyright (C) 2016 Elphel, Inc.

/**

 * @file read_imu_log.php

 * @brief parse imu log from Elphel 10393 (and 10353)

 * @copyright Copyright (C) 2017 Elphel Inc.

 * @author Elphel Inc. <support-list@support.elphel.com>

 *

 * @par <b>License</b>:

 *  This program is free software: you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation, either version 3 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

set_time_limit(0);