chore(agent): add comment

Author: hahuja2

agent/fw_laravel_queue.c

@@ -839,6 +839,11 @@ NR_PHP_WRAPPER(nr_laravel_queue_queue_createpayload) {
 }
 NR_PHP_WRAPPER_END
 
+/*
+ * Ensure that the transaction is properly stopped when Laravel Horizon is being
+ * used by wrapping the handle method of the HorizonCommand and
+ * SupervisorCommand class.
+ */
 NR_PHP_WRAPPER(nr_laravel_horizon_end) {
   NR_UNUSED_SPECIALFN;
   (void)wraprec;
@@ -881,6 +886,13 @@ void nr_laravel_queue_enable(TSRMLS_D) {
   nr_php_wrap_user_function_before_after_clean(
       NR_PSTR("Illuminate\\Queue\\SyncQueue::raiseAfterJobEvent"),
       nr_laravel_queue_worker_raiseAfterJobEvent_before, NULL, NULL);
+  
+  /*
+   * The following functions have been added to ensure that the transaction
+   * is properly stopped when Laravel Horizon is being used. This is
+   * accomplished by wrapping the handle method of the HorizonCommand class and
+   * the SupervisorCommand class.
+   */
   nr_php_wrap_user_function_before_after_clean(
       NR_PSTR("Laravel\\Horizon\\Console\\HorizonCommand::handle"),
       nr_laravel_horizon_end, NULL, NULL);