[Solved] "redisbackend" not defined

Hey guys, please excuse my short explanation but I don't have much free time.
I'm running on the beta branch and today I didn't update for like 1 month, today I updated because of the security patch in nginx 1.11.1.
When the nginx instance restarted I was getting two errors at my WordPress Redis include file "/usr/local/nginx/conf/wpincludes/example.com/rediscache_example.com.conf" so it wasn't able to launch.
The errors were both for the redis_pass argument: "no port in upstream 'redisbackend'".
So yeah... I immediately thought that "redisbackend" was not declared or something and just replaced both lines with "localhost:6379".
And it worked, dirty easy fix since I had no time to look into further.
I'm running WordPress with redis cache at nginx level, I followed eva's tutorial.
Thanks!

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Oh well, thank you hehe.
That was it.
No clue why that got commented during the update.
Thanks eva!