( we should probably add the other loggers - only what is found is used,
it doesn't hurt anyone ).
Even if most containers will automatically add whatever is in lib, if you
use it in command line things are more difficult.
git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/logging/trunk@138885 13f79535-47bb-0310-9956-ffa450edef68
