old_contents: var child = require('child_process');
  var path = require('path');
  
  module.exports = function(arg, generate, done) {
    var uploaderUrl = path.join(__dirname, '../commands/burn');
    var featureConfig = require(process.env.PWD + '/featureConfig');
    var sdkPath = process.env.PWD + '/sdk';
  
    var burn = child.exec('python ' + uploaderUrl + '/upload.py -c ' + featureConfig.download_port + ' -f ./out/mt7687_hdk/iot_sdk_demo/mt7687_iot_sdk_demo.bin', { cwd: sdkPath });
    burn.stdout.on('data', function(data) {
      console.log(data);
    });
    burn.stderr.on('data', function(data) {
      console.log(data);
    });
    burn.on('exit', function() {
      console.log('==============================================================');
      console.log('Success! Download! ');
      console.log('==============================================================');
    });
  }
new_contents: var child = require('child_process');
  var path = require('path');
  
  module.exports = function(arg, generate, done) {
    var uploaderUrl = path.join(__dirname, '../commands/burn');
    var featureConfig = require(process.env.PWD + '/featureConfig');
    var sdkPath = process.env.PWD + '/sdk';
  
    var burn = child.exec('python ' + uploaderUrl + '/upload.py -c ' + featureConfig.download_port + ' -f ./out/mt7687_hdk/iot_sdk_demo/mt7687_iot_sdk_demo.bin', { cwd: sdkPath });
  
    burn.stdout.on('data', function(data) {
      console.log(data);
    });
    burn.stderr.on('data', function(data) {
      console.log(data);
    });
    burn.on('exit', function() {
      console.log('==============================================================');
      console.log('Success!'.green + ' Download! ');
      console.log('==============================================================');
    });
  }
subject: add general style