Fix apr_hash_first() doxygen syntax.

http://svn.apache.org/viewvc?view=revision&revision=829490

Doxgen would generate html file with full Userland build path in name

for this header.

--- include/apr_hash.h	2009/10/25 03:52:40	829489

+++ include/apr_hash.h	2009/10/25 04:12:21	829490

@@ -122,16 +122,15 @@

  * @param p The pool to allocate the apr_hash_index_t iterator. If this

  *          pool is NULL, then an internal, non-thread-safe iterator is used.

  * @param ht The hash table

+ * @return The iteration state

  * @remark  There is no restriction on adding or deleting hash entries during

  * an iteration (although the results may be unpredictable unless all you do

  * is delete the current entry) and multiple iterations can be in

  * progress at the same time.

- */

-/**

- * @example

  *

- * <PRE>

- * 

+ * @par Example:

+ *

+ * @code

  * int sum_values(apr_pool_t *p, apr_hash_t *ht)

  * {

  *     apr_hash_index_t *hi;

@@ -143,7 +142,7 @@

  *     }

  *     return sum;

  * }

- * </PRE>

+ * @endcode

  */

 APR_DECLARE(apr_hash_index_t *) apr_hash_first(apr_pool_t *p, apr_hash_t *ht);