Fix a bunch of typos in documentation, docstrings and comments.
(From SF patch #810751)
diff --git a/Lib/email/Message.py b/Lib/email/Message.py
index d4c10df..9f826d8 100644
--- a/Lib/email/Message.py
+++ b/Lib/email/Message.py
@@ -775,7 +775,7 @@
newparams.append((pk, pv))
if not foundp:
# The original Content-Type header had no boundary attribute.
- # Tack one one the end. BAW: should we raise an exception
+ # Tack one on the end. BAW: should we raise an exception
# instead???
newparams.append(('boundary', '"%s"' % boundary))
# Replace the existing Content-Type header with the new value