[ANN] flog 4.6.4 Released

flog version 4.6.4 has been released!

* home: <http://ruby.sadi.st/>
* code: <https://github.com/seattlerb/flog>
* rdoc: <http://docs.seattlerb.org/flog>
* vim: <http://github.com/sentientmonkey/vim-flog>

Flog reports the most tortured code in an easy to read pain
report. The higher the score, the more pain the code is in.


### 4.6.4 / 2019-12-14

* 2 minor enhancements:

  * Added basic support for safe_call (nic-potter).
  * Added extra complexity penalty to safe_call processing.