We can close this bug now.
Imported Upstream version 2.8.11
Merge tag 'upstream/2.8.11'

Upstream version 2.8.11

* tag 'upstream/2.8.11':
  Imported Upstream version 2.8.11
New upstream release.
Synchronise ./debian/redis.conf with ./redis.conf.
releasing version 2:2.8.11-1