Fix null termination advice for SOA and JTL

Author: vy

src/site/antora/modules/ROOT/examples/cloud/logstash/log4j2.json

@@ -6,9 +6,7 @@
         "name": "SOCKET",
         "host": "localhost",
         "port": 12345,
-        "JsonTemplateLayout": {
-          "nullEventDelimiterEnabled": true
-        }
+        "JsonTemplateLayout": {}
       }
       // end::socketAppender[]
     },

src/site/antora/modules/ROOT/examples/cloud/logstash/log4j2.properties

@@ -21,7 +21,6 @@ appender.0.name = SOCKET
 appender.0.host = localhost
 appender.0.port = 12345
 appender.0.layout.type = JsonTemplateLayout
-appender.0.layout.nullEventDelimiterEnabled = true
 # end::socketAppender[]
 
 rootLogger.level = WARN

src/site/antora/modules/ROOT/examples/cloud/logstash/log4j2.xml

@@ -24,7 +24,7 @@
   <Appenders>
     <!-- tag::socketAppender[] -->
     <Socket name="SOCKET" host="localhost" port="12345">
-      <JsonTemplateLayout nullEventDelimiterEnabled="true"/>
+      <JsonTemplateLayout/>
     </Socket>
     <!-- end::socketAppender[] -->
   </Appenders>

src/site/antora/modules/ROOT/examples/cloud/logstash/log4j2.yaml

@@ -22,8 +22,7 @@ Configuration:
       name: "SOCKET"
       host: "localhost"
       port: 12345
-      JsonTemplateLayout:
-        nullEventDelimiterEnabled: true
+      JsonTemplateLayout: {}
     # end::socketAppender[]
 
   Loggers:

src/site/antora/modules/ROOT/pages/soa.adoc

@@ -99,8 +99,7 @@ Nevertheless, there are some tips we recommend you to practice:
 
 * *For writing to console*, use a xref:manual/appenders.adoc#ConsoleAppender[Console Appender] and make sure to configure its `direct` attribute to `true` for the maximum efficiency.
 
-* *For writing to an external service*, use a xref:manual/appenders/network.adoc#SocketAppender[Socket Appender] and make sure to set the protocol to TCP and configure the null delimiter of the associated layout.
-For instance, see xref:manual/json-template-layout.adoc#plugin-attr-nullEventDelimiterEnabled[the `nullEventDelimiterEnabled` configuration attribute of JSON Template Layout].
+* *For writing to an external service*, use a xref:manual/appenders/network.adoc#SocketAppender[Socket Appender] and make sure to configure the protocol and layout's null termination (e.g., see xref:manual/json-template-layout.adoc#plugin-attr-nullEventDelimiterEnabled[the `nullEventDelimiterEnabled` configuration attribute of JSON Template Layout]) appropriately.
 
 [#file]
 === Avoid writing to files