[GRASS-git] [OSGeo/grass] bbfa5b: Missing python-six dependency added

[Markus Neteler]

  Branch: refs/heads/releasebranch_7_6
  Home:   https://github.com/OSGeo/grass
  Commit: bbfa5bc3c9bb7d55262a4be20ebaeb97c5df929b
      https://github.com/OSGeo/grass/commit/bbfa5bc3c9bb7d55262a4be20ebaeb97c5df929b
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2019-08-07 (Wed, 07 Aug 2019)

  Changed paths:
    M Dockerfile

  Log Message:
  -----------
  Missing python-six dependency added