fix contextlib.ExitStack typo in 3.3's whatsnew.rst

diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst
index c1c66428a26943983b50dd1a3a4d81db39a45a0e..8208f0714c5bab8bbd6d07559e31d79870d03c72 100644 (file)
--- a/Doc/whatsnew/3.3.rst
+++ b/Doc/whatsnew/3.3.rst
@@ -1079,7 +1079,7 @@ collections classes.  Aliases for ABCs are still present in the
 contextlib
 ----------
 
-:class:`~collections.ExitStack` now provides a solid foundation for
+:class:`~contextlib.ExitStack` now provides a solid foundation for
 programmatic manipulation of context managers and similar cleanup
 functionality. Unlike the previous ``contextlib.nested`` API (which was
 deprecated and removed), the new API is designed to work correctly