Fix acl_setuser docstring
Fix the docstring for acl_setuser() so that it refers to the correct parameter name,`passwords`.
@@ -993,7 +993,7 @@ class Redis(object):
``passwords`` if specified is a list of plain text passwords
to add to or remove from the user. Each password must be prefixed with
a '+' to add or a '-' to remove. For convenience, the value of
- ``add_passwords`` can be a simple prefixed string when adding or
+ ``passwords`` can be a simple prefixed string when adding or
removing a single password.
``hashed_passwords`` if specified is a list of SHA-256 hashed passwords
