Fix whitespaces to tabs.
diff --git a/application/config/database.php b/application/config/database.php
index 361df90..62ff3e0 100644
--- a/application/config/database.php
+++ b/application/config/database.php
@@ -68,7 +68,7 @@
| ['save_queries'] TRUE/FALSE - save all executed queries.
| Note: Useful for development when using with profiler. However,
| when too many queries run, it leads to memory exhaust. So for production
-| mode it is better to set it FALSE. Also, if set to FALSE, the
+| mode it is better to set it FALSE. Also, if set to FALSE, the
| $this->db->last_query() will return FALSE. This setting can
| also be changed during runtime by using
| $this->db->save_queries = TRUE|FALSE;