NLog - Как добавить запятую после каждого документа JSON регистрации?

Используя NLog, как добавить запятую после каждого сообщения Json, подобного этому?

{ "time": "2022-10-12", "name": "Index", "level": "ERROR", "message": "Hello Logging" }

,  <-----

{ "time": "2022-10-12", "name": "Index", "level": "ERROR", "message": "Hello Logging" }

Вот nlog.config

<?xml version = "1.0" encoding = "utf-8" ?>

<nlog xmlns = "http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
      autoReload = "true"
      internalLogLevel = "Error"
      internalLogFile = "c:\\LogFiles\TasksInternalLog.txt">

    <!-- enable asp.net core layout renderers -->
    <extensions>
            <add assembly = "NLog.Web.AspNetCore"/>
    </extensions>


    <variable name = "newDoc" value = ","/>
    
    <targets>
        <target xsi:type = "File" name = "tasksJsonFile" fileName = "c:\\logFiles\\json-${shortdate}.log">

            <layout xsi:type = "JsonLayout" includeAllProperties = "false">
                <attribute name = "time" layout = "${longdate}" />
                <attribute name = "name" layout = "${callsite}" />
                <attribute name = "level" layout = "${level:upperCase=true}"/>
                <attribute name = "message" layout = "${message}" />
                <!--<layout xsi:type = "TextLayout" includeAllProperties = "false" delimiter = "Comma" withHeader = "false">
                    ${newDoc}
                </layout>-->
            </layout>
            <layout xsi:type = "TextLayout" includeAllProperties = "false" delimiter = "Comma" withHeader = "false">
                
                ,
            </layout>

        </target>


    </targets>

    <rules>
        <logger name = "Microsoft.*" minlevel = "Info" final = "true" />
        <logger name = "*" minlevel = "Info" writeTo = "tasksJsonFile" />
        
    </rules>
</nlog>