Bug #1011: fix rfc822.Message.getheader docs.
diff --git a/Doc/library/rfc822.rst b/Doc/library/rfc822.rst
index 52df013..da9f536 100644
--- a/Doc/library/rfc822.rst
+++ b/Doc/library/rfc822.rst
@@ -198,10 +198,12 @@
.. method:: Message.getheader(name[, default])
- Like ``getrawheader(name)``, but strip leading and trailing whitespace.
+ Return a single string consisting of the last header matching *name*,
+ but strip leading and trailing whitespace.
Internal whitespace is not stripped. The optional *default* argument can be
used to specify a different default to be returned when there is no header
- matching *name*.
+ matching *name*; it defaults to ``None``.
+ This is the preferred way to get parsed headers.
.. method:: Message.get(name[, default])