class RSpec::Core::RakeTask

def run_task(verbose)
  command = spec_command
  puts command if verbose
  if with_clean_environment
    return if system({}, command, :unsetenv_others => true)
  else
    return if system(command)
  end
  puts failure_message if failure_message
  return unless fail_on_error
  $stderr.puts "#{command} failed" if verbose
  exit $?.exitstatus || 1
end