old_contents: 'use strict';
  var fs = require('fs');
  var downloadatomshell = require('gulp-download-atom-shell');
  
  downloadatomshell({
    version: '0.19.5',
    outputDir: 'atom'
  }, function(){
  
    if (process.platform === 'linux'){
      var atompath = require('./findpath');
      fs.chmodSync(atompath, '0777');
    }
  
  });
new_contents: 'use strict';
  var fs = require('fs');
  var downloadatomshell = require('gulp-download-atom-shell');
  
  downloadatomshell({
    version: '0.20.5',
    outputDir: 'atom'
  }, function(){
  
    if (process.platform === 'linux'){
      var atompath = require('./findpath');
      fs.chmodSync(atompath, '0777');
    }
  
  });
subject: Update to atom-shell 0.20.5