old_contents: 'use strict';
  
  var inlineSource = require('inline-source').sync;
  
  /*
   * Filter files to find HTML files.
   * Iterate through each file name and grab
   * the contents of each file and replace
   * with an inlined version.
   */
  
  var inline = function(options) {
    return function(files, metalsmith, done) {
        var htmlFiles = Object.keys(files).filter(function(file) {
          // Make sure the filename ends in either htm or html
          var checkIfHtml = /[.](?:html?)$/.test(file);
  
          if (checkIfHtml) {
            return file;
          }
        });
  
        htmlFiles.map(function(path) {
          files[path].contents = new Buffer(inlineSource(files[path].contents.toString(), options)), 'utf8';
        });
      done();
    };
  };
  
  module.exports = inline;
  
new_contents: 'use strict';
  
  var inlineSource = require('inline-source').sync;
  
  /*
   * Filter files to find HTML files.
   * Iterate through each file name and grab
   * the contents of each file and replace
   * with an inlined version.
   */
  
  var inline = function(options) {
    return function(files, metalsmith, done) {
      var htmlFiles = Object.keys(files).filter(function(file) {
        // Make sure the filename ends in either htm or html
        var checkIfHtml = /[.](?:html?)$/.test(file);
  
        if (checkIfHtml) {
          return file;
        }
      });
  
      htmlFiles.map(function(path) {
        files[path].contents = new Buffer(inlineSource(files[path].contents.toString(), options)), 'utf8';
      });
      done();
    };
  };
  
  module.exports = inline;
  
subject: Fix indentation