fix bucket_endpoints parse
fix bucket_endpoints parse

aliyun/oss-ftp,johnkeepmoving/oss-ftp,aliyun/oss-ftp,johnkeepmoving/oss-ftp,aliyun/oss-ftp,aliyun/oss-ftp,aliyun/oss-ftp,johnkeepmoving/oss-ftp,johnkeepmoving/oss-ftp,johnkeepmoving/oss-ftp,johnkeepmoving/oss-ftp,aliyun/oss-ftp,aliyun/oss-ftp,johnkeepmoving/oss-ftp,johnkeepmoving/oss-ftp