Invoke GET method with promisify but return redis server info.

Issue

I use promisify to create a getAsync function, and I use this function to get data from redis, some code like below:
const getAsync = util.promisify(redisClient.GET).bind(redisClient); let userDataUuid = await getAsync(buildUserNameCacheKey(TID, userName));
but in my log this "userDataUuid" is below, it sames redis server info.

Server^M

redis_version:5.0.5^M
redis_git_sha1:00000000^M
redis_git_dirty:0^M
redis_build_id:442b43d467cd2b03^M

and here is my retry_strategy, I need retry evertytime, I think maybe retry logic made that server info response.
retry_strategy: function(options) { logger.info("Test Redis connection!"); // reconnect after return Math.min(options.attempt * 100, 30000); }

Environment

• node-redis Version: 2.8.0

• Node.js Version: docker image node:10-alpine

• Redis Version: 5.0.5

• Platform: Linux

Reproduce the reported GET call with node-redis 2.8.0, Node.js 10, Redis 5.0.5, and the supplied retry_strategy. Start by tracing the promisified GET entry point and retry behavior; done means determining why Redis server info is returned and documenting or correcting the behavior.