Fix up header in mod_dbd.h (I remembered .c but not .h before previous commit)

/*        Copyright (c) 2004, Nick Kew.  All rights reserved.

        If this is accepted by ASF for inclusion in APR-UTIL,

        I will assign copyright to ASF and license under ASF terms.

/* Copyright 2003-5 WebThing Ltd

 * Copyright 2005 The Apache Software Foundation or its licensors, as

 * applicable.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

        Otherwise I will retain copyright and license under

        terms of my choice.

/* Overview of what this is and does:

 * http://www.apache.org/~niq/dbd.html

 * or

 * http://apache.webthing.com/database/

 */

#ifndef DBD_H

#define DBD_H

/* Export functions to access the database */

/* acquire a connection that MUST be explicitly closed.  Returns NULL on error */

/* acquire a connection that MUST be explicitly closed.

 * Returns NULL on error

 */

AP_DECLARE(ap_dbd_t*) ap_dbd_open(apr_pool_t*, server_rec*);

/* release a connection acquired with ap_dbd_open */

AP_DECLARE(void) ap_dbd_close(server_rec*, ap_dbd_t*);

/* acquire a connection that will have the lifetime of a request

   and MUST NOT be explicitly closed.  Return NULL on error.

   This is the preferred function for most applications.

 * and MUST NOT be explicitly closed.  Return NULL on error.

 * This is the preferred function for most applications.

 */

AP_DECLARE(ap_dbd_t*) ap_dbd_acquire(request_rec*);