small issue in the example config

[1ugh]

In the first part you say "users:" then you say "u:" - is that a mistake?

# Optional: prefix users with the following string
auth_opt_redis_username_prefix users:
auth_opt_redis_host 127.0.0.1
auth_opt_redis_port 6379

# Clients may PUB/SUB to the following prefix. '%' is replaced
# with an authorized user's username (sans username_prefix). So,
# user 'jjolie' may PUB/SUB to "/location/jjolie" and her password
# is at Redis key "u:jjolie"

[jpmens]

Fixed, thanks.