#11686: add missing entries to email __all__ lists.

Original patch by Steffen Daode Nurpmeso
diff --git a/Lib/email/feedparser.py b/Lib/email/feedparser.py
index 60a8325..aa8a2ff 100644
--- a/Lib/email/feedparser.py
+++ b/Lib/email/feedparser.py
@@ -19,7 +19,7 @@
 object's .defects attribute.
 """
 
-__all__ = ['FeedParser']
+__all__ = ['FeedParser', 'BytesFeedParser']
 
 import re