How to turn on camel httpClient logging in karaf?

Hi all,
We are having issues with a camel route deployed in Karaf that we believe
are due to the connection pooling settings of the apache httpClient used by
the Camel http component. To validate this, we'd like to able to turn on
logging for the apache httpClient used by camel. I have edited the karaf
org.ops4j.pax.logging.cfg file to turn on logging for org.apache.http, but
am still not seeing anything for this in the logs. Am I missing something
here? Can someone point me to the correct config to use to see the log
output of the httpclient used by camel? Thanks!

-e