[doodstream] prefer single quotes

youtube_dl/extractor/doodstream.py

@@ -72,7 +72,7 @@ class DoodStreamIE(InfoExtractor):
         except KeyError:
             title = video_id
 
-        token = self._html_search_regex(r'[?&]token=([a-z0-9]+)[&\']', webpage, 'token')
+        token = self._html_search_regex(r"[?&]token=([a-z0-9]+)[&']", webpage, 'token')
         auth_url = self._html_search_regex(r"('/pass_md5.*?')", webpage,
                                            'pass_md5')
         auth_url = self._parse_json(auth_url, video_id,
@@ -80,7 +80,7 @@ class DoodStreamIE(InfoExtractor):
         auth_url = urljoin(url, auth_url)
 
         webpage = self._download_webpage(auth_url, video_id, headers=referer)
-        final_url = webpage + ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(10)) + "?token=" + token + "&expiry=" + str(int(time.time() * 1000))
+        final_url = webpage + ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(10)) + '?token=' + token + '&expiry=' + str(int(time.time() * 1000))
 
         return {
             'id': video_id,