Merge pull request #3147 from hzoo/lint-fixes

lint whitespace , trailing comma

extractCode.js

@@ -16,11 +16,11 @@ function main(dest, filenames) {
   if (!dest) {
     throw new Error('no dest provided');
   }
-    filenames.map(function (filename) {
+  filenames.map(function(filename) {
     var content = fs.readFileSync(filename).toString('utf8');
     var codeSamples = content.match(CODE_SAMPLE);
 
-	codeSamples.map(function (codeSample) {
+    codeSamples.map(function(codeSample) {
       // Do a little jank preprocessing
       codeSample = codeSample.replace('<!--', '//').replace(' -->', '');
       var extracted = codeSample.match(PARTS);