Unzip response body only for statuses != 204 (#1129)

lib/adapters/http.js

@@ -188,7 +188,7 @@ module.exports = function httpAdapter(config) {
       case 'compress':
       case 'deflate':
         // add the unzipper to the body stream processing pipeline
-        stream = stream.pipe(zlib.createUnzip());
+        stream = (res.statusCode === 204) ? stream : stream.pipe(zlib.createUnzip());
 
         // remove the content-encoding in order to not confuse downstream operations
         delete res.headers['content-encoding'];