Turning on Logging

[hokie]

What is the properties.xml line to turn on logging say for connectors 
and db.  Is it the following?  Do you say value = true or enabled or on?

<property name="org.apache.manifoldcf.db" value="true"/>
<property name="org.apache.manifoldcf.connectors" value="true"/>
Thanks,
Farzad.