[huajiao] Coding style

youtube_dl/extractor/huajiao.py

@@ -1,8 +1,11 @@
 # coding: utf-8
 from __future__ import unicode_literals
 
-from ..utils import parse_duration, parse_iso8601
 from .common import InfoExtractor
+from ..utils import (
+    parse_duration,
+    parse_iso8601,
+)
 
 
 class HuajiaoIE(InfoExtractor):