log4j dir?

Hi guys,

Just notice kafka.logs.dir in log4j.properties doesn't take effect

It's always set to *$base_dir/logs* in kafka-run-class.sh

LOG_DIR=$base_dir/logs
KAFKA_LOG4J_OPTS="-Dkafka.logs.dir=$LOG_DIR $KAFKA_LOG4J_OPTS"

Best,
Siyuan