[feature/sphinx-fulltext-search] add binlog_path to config

binlog files are now added to the data folder.

PHPBB3-10946

phpBB/docs/sphinx.sample.conf

@@ -93,4 +93,5 @@ searchd
 index index_phpbb_{AVATAR_SALT}_main
 {
 	path = {DATA_PATH}/index_phpbb_{AVATAR_SALT}_main
+	source = source_phpbb_{AVATAR_SALT}_main
 	docinfo = extern

phpBB/includes/search/fulltext_sphinx.php

@@ -315,6 +315,7 @@ class phpbb_search_fulltext_sphinx
 					array('max_children',				'30'),
 					array('pid_file',					$config['fulltext_sphinx_data_path'] . "searchd.pid"),
 					array('max_matches',				(string) MAX_MATCHES),
+					array('binlog_path',				$config['fulltext_sphinx_data_path']),
 				),
 			);