You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: wine_runner.rb
    path of file: ./repos/artichoke/artichoke-backend/vendor/mruby/build_config/helpers
    
    the code of the file until where you have to start completion: #!/usr/bin/env ruby

# Wrapper for running tests for cross-compiled Windows builds in Wine.

require 'open3'

DOSROOT = 'z:'

# Rewrite test output to replace DOS-isms with Unix-isms.
def clean(output, stderr = false)
  ends_with_newline = !!(output =~ /\n$/)
  executable = ARGV[0].gsub(/\.exe\z/i, '')

  # Fix line-ends
  output = output.gsub(/\r\n/
    
def clean(output, stderr = false)
  ends_with_newline = !!(output =~ /\n$/)
  executable = ARGV[0].gsub(/\.exe\z/i, '')

  # Fix line-ends
  output = output.gsub(/\r\n/, "\n")

  # Strip out Wine messages


  results = output.split(/\n/).map do |line|
    # Fix file paths
    if line =~ /#{DOSROOT}\\/i
      line.gsub!(/#{DOSROOT}([^:]*)/i) { |path|
        path.gsub!(/^#{DOSROOT}/i, '')
        path.gsub!(%r{\\}, '/')
        path
      }
    end

    # strip '.exe' off the end of the executable's name if needed
    line.gsub!(/(#{Regexp.escape executable})\.exe/i, '\1')

    line
  end