Zookeeper371不显示日志问题处理

zookeeper371 启动不显示具体日志，导致启动失败无法排查：
修复方法如下：
cp -a /usr/local/oushu/conf/zookeeper/conf.empty/log4j.properties /usr/local/oushu/conf/zookeeper/
VIM log4j.properties -- 替换 zookeeper.log.dir=/usr/local/oushu/log/zookeeper