fix typo in what's new in 3.4
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst
index ac50497..e978fcb 100644
--- a/Doc/whatsnew/3.4.rst
+++ b/Doc/whatsnew/3.4.rst
@@ -271,7 +271,7 @@
statement. (Contributed by Raymond Hettinger in :issue:`15806` and
Zero Piraeus in :issue:`19266`)
-The new :class:`contextlib.redirect_stdio` context manager makes it easier
+The new :func:`contextlib.redirect_stdout` context manager makes it easier
for utility scripts to handle inflexible APIs that don't provide any
options to retrieve their output as a string or direct it to somewhere
other than :data:`sys.stdout`. In conjunction with :class:`io.StringIO`,