3.9.4 release notes wording

(cherry picked from commit 5a580c9)

Author: michaelklishin

release-notes/3.9.4.md

@@ -48,9 +48,10 @@ consistent release schedule.
    definitions.import_backend = https
 
    definitions.https.url = https://rabbitmq.eng.megacorp.local/env-1/definitions.json
-   
+
+   # client-side TLS options for definition import   
    definitions.tls.versions.1 = tlsv1.2
-   definitions.tls.log_level   = error
+   definitions.tls.log_level  = error
    ```
 
    GitHub issue: [#3249](https://github.com/rabbitmq/rabbitmq-server/issues/3249)