[ci skip] feature/session (#3073): Add missing method docblocks
diff --git a/system/libraries/Session/Session_driver.php b/system/libraries/Session/Session_driver.php
index de1908a..c4fbde4 100644
--- a/system/libraries/Session/Session_driver.php
+++ b/system/libraries/Session/Session_driver.php
@@ -89,6 +89,14 @@
// ------------------------------------------------------------------------
+ /**
+ * Cookie destroy
+ *
+ * Internal method to force removal of a cookie by the client
+ * when session_destroy() is called.
+ *
+ * @return bool
+ */
protected function _cookie_destroy()
{
return setcookie(