manually add - before new test sample

Author: shanaslavin-datadog

iis/assets/logs/iis_tests.yaml

@@ -75,7 +75,7 @@ tests:
     tags:
      - "source:LOGS_SOURCE"
     timestamp: 1020361335000
-
+ -
   sample: "2002-05-02 17:42:15 172.22.255.255 GET /images/picture.jpg ?toto=tata 80 toto 123.123.123.123 Mozilla/4.0+(compatible;MSIE+5.5;+Windows+2000+Server) 200 211 322 1234 75.177.176.102,+23.48.200.135"
   result:
     custom: