[GRASS-git] [OSGeo/grass] d06c8e: init: Clean up Flake8 config (#1508)

[Vaclav Petras]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass
  Commit: d06c8e85bc777394c848b8d8aae94195dae87591
      https://github.com/OSGeo/grass/commit/d06c8e85bc777394c848b8d8aae94195dae87591
  Author: Vaclav Petras <wenzeslaus at gmail.com>
  Date:   2021-04-06 (Tue, 06 Apr 2021)

  Changed paths:
    M lib/init/.flake8

  Log Message:
  -----------
  init: Clean up Flake8 config (#1508)

Enable resolved warnings. Add underscore as a builtin.