old_contents: var handler = require('../lib/komachanhandler');
  var komaHandler = new handler();
  
  komaHandler.start();
  komaHandler.finish(function(mess){
    console.log(mess);
    process.exit();
  });
  
  process.on('exit', function(){
    komaHandler.end();
  });
  
new_contents: var handler = require('../lib/komachanhandler');
  var komaHandler = new handler();
  
  komaHandler.start();
  komaHandler.finish(function(mess){
    console.log(mess);
    process.exit();
  });
  
  process.on('exit', function(){
    komaHandler.end();
  });
  
  process.on('SIGTSTP', function() {
    console.log('Got SIGTSTP.');
  });
  
subject: add process sigtstp