Eventing Service: A debug level message redacts more information than minimum

Testing with 5.5 beta, build 2473 Similar to MB-28677 the eventing service is again marking redacted data incorrectly.

This isn't following the spec for log redaction.

2018-04-18T11:30:46.774+00:00 [Trace] Audit event 32771 with context <ud><nil></ud> on request <ud>&{GET /getDeployedApps HTTP/1.1 1 1 map[Cookie:[ui-auth-10.143.180.101%3A8091=52b5c6935b5df6a836cda39986a3988e] Menelaus-Auth-Token:[52b5c6935b5df6a836cda39986a3988e] Referer:http://10.143.180.101:8091/ui/index.html User-Agent:[Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36] Ns-Server-Auth-Token:[52b5c6935b5df6a836cda39986a3988e] Accept:[application/json, text/plain, */*] Menelaus-Auth-Domain:[admin] Pragma:[no-cache] Cache-Control:[no-cache] Connection:[keep-alive] Invalid-Auth-Response:[on] Ns-Server-Ui:[yes yes] Accept-Language:[en-GB,en-US;q=0.9,en;q=0.8] Accept-Encoding:[gzip, deflate] Menelaus-Auth-User:[Administrator]] 0x1509840 0 [] false 10.143.180.101:8091 map[] map[] <nil> map[] 127.0.0.1:41839 /getDeployedApps <nil> <nil> <nil> 0xc4202015c0}</ud>

turns into 

2018-04-18T11:30:46.774+00:00 [Trace] Audit event 32771 with context <ud>d99dd0853b1f50e661dd8b97d852103fbcc9fa11</ud> on request <ud>453c0e3b354abd4b7ee255ae1b653a5de917acb3</ud>