class RuboCop::RSpec::ParallelFormatter

def output_summary(summary)

removed!
output goes where in the final parallelized output, and should not be
The BEGIN/END comments are used by `spec_runner.rake` to determine what 
def output_summary(summary)
  output.puts '# SUMMARY BEGIN'
  output.puts colorize_summary(summary)
  output.puts '# SUMMARY END'
end