a *str is @c NULL, set @a *str to a new stringbuf allocated
 * in @a pool, else append to the existing stringbuf there.
 */
void
svn_xml_make_close_tag(svn_stringbuf_t **str,
                       apr_pool_t *pool,
                       const char *tagname);


#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* SVN_XML_H */