old_contents: from atelier.invlib import setup_from_tasks
  ns = setup_from_tasks(globals(), "commondata.ee")
  ns.configure({
      'revision_control_system' : 'git',
      # 'doc_trees' : []
  })
  
new_contents: from atelier.invlib import setup_from_tasks
  ns = setup_from_tasks(globals(), "commondata.ee",
      revision_control_system='git'
      )
  
subject: update tasks.py syntax