[myspass] Fix extraction (closes #6206)

youtube_dl/extractor/myspass.py

@@ -35,7 +35,8 @@ class MySpassIE(InfoExtractor):
 
         # get metadata
         metadata_url = META_DATA_URL_TEMPLATE % video_id
-        metadata = self._download_xml(metadata_url, video_id)
+        metadata = self._download_xml(
+            metadata_url, video_id, transform_source=lambda s: s.strip())
 
         # extract values from metadata
         url_flv_el = metadata.find('url_flv')