App.config: trace listeners - console and text file

App.config: trace listeners - console and text file

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.diagnostics>
    <trace autoflush="true">
      <listeners>
        <add name="logListener" type="System.Diagnostics.TextWriterTraceListener" initializeData="trace.log" />
        <add name="consoleListener" type="System.Diagnostics.ConsoleTraceListener"/>
      </listeners>
    </trace>
  </system.diagnostics>
</configuration>