anchor.diff:  
   
   [[redis-output]]
  -==== Redis Output
  +==== Redis Output (DEPRECATED)
   
   ////
   TODO: I think besides the list option, PUB-SUB is also supported here (there
  
positive.code: In addition to the logging system, the logging output configuration can be
  modified from <<command-line-options, command line>>.
  
  ==== to_syslog
  
  Send all logging output to syslog if enabled. For non Windows systems default
  value is true.
  
  ==== to_files
  
  Write all logging output to files subject to file rotation. On Windows systems
  default value is true.
  
  ==== selectors
  
  List of debugging only selector tags used by different beats components. Use `*`
  to enable debug output for all components. For example add 'publish' to display
  all the debug messages related to event publishing.
  
  ==== files
  
  Log rotation for file output can be configured in the files subsection.
  
  ===== files.path
  
  The path setting sets the directory log files will be written to. For Windows
  systems the default path is C:\\ProgramData\<beat-name>\Logs. Default for
  non-Windows systems is /var/log/<beat-name>.
  
  
negative.code: 
  * Elasticsearch
  * Logstash
  * Redis (DEPRECATED)
  * File
  
  One or multiple outputs can be enabled at a time. The output plugins are
  