[ticket/11179] minor fixes

Amends comments to start with capitals. Reinsert blank lines which were
not supposed to be removed

PHPBB3-11179

phpBB/includes/search/fulltext_mysql.php

@@ -386,6 +386,7 @@ class phpbb_search_fulltext_mysql extends phpbb_search_base
 		{
 			return $result_count;
 		}
+
 		$id_ary = array();
 
 		$join_topic = ($type == 'posts') ? false : true;