Spelling fixes - `wether` to `whether`
Interestingly `wether` means a castrated ram in old English
diff --git a/system/database/DB_query_builder.php b/system/database/DB_query_builder.php
index 1ac9af9..531ca9e 100644
--- a/system/database/DB_query_builder.php
+++ b/system/database/DB_query_builder.php
@@ -324,7 +324,7 @@
* @param string
* @param string the join condition
* @param string the type of join
- * @param string wether not to try to escape identifiers
+ * @param string whether not to try to escape identifiers
* @return object
*/
public function join($table, $cond, $type = '', $escape = NULL)