Log Message:
py-redis: updated to 3.4.0

3.4.0
* Allow empty pipelines to be executed if there are WATCHed keys.
  This is a convenient way to test if any of the watched keys changed
  without actually running any other commands.
* Removed support for end of life Python 3.4.
* Added support for all ACL commands in Redis 6.
* Pipeline instances now always evaluate to True. Prior to this change,
  pipeline instances relied on __len__ for boolean evaluation which
  meant that pipelines with no commands on the stack would be considered
  False.
* Client instances and Connection pools now support a 'client_name'
  argument. If supplied, all connections created will call CLIENT SETNAME
  as soon as the connection is opened.
* Added the 'ssl_check_hostname' argument to specify whether SSL
  connections should require the server hostname to match the hostname
  specified in the SSL cert. By default 'ssl_check_hostname' is False
  for backwards compatibility.
* Slightly optimized command packing.
* Added support for the TYPE argument to SCAN.
* Better thread and fork safety in ConnectionPool and
  BlockingConnectionPool. Added better locking to synchronize critical
  sections rather than relying on CPython-specific implementation details
  relating to atomic operations. Adjusted how the pools identify and
  deal with a fork. Added a ChildDeadlockedError exception that is
  raised by child processes in the very unlikely chance that a deadlock
  is encountered.