Fix description in Python 3.7 What's New (#3603)
diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst
index 44911cc..870ca06 100644
--- a/Doc/whatsnew/3.7.rst
+++ b/Doc/whatsnew/3.7.rst
@@ -296,9 +296,8 @@
(Contributed by Serhiy Storchaka in :issue:`24821`.)
* Fast implementation from standard C library is now used for functions
- :func:`~math.tgamma`, :func:`~math.lgamma`, :func:`~math.erf` and
- :func:`~math.erfc` in the :mod:`math` module. (Contributed by Serhiy
- Storchaka in :issue:`26121`.)
+ :func:`~math.erf` and :func:`~math.erfc` in the :mod:`math` module.
+ (Contributed by Serhiy Storchaka in :issue:`26121`.)
* The :func:`os.fwalk` function has been sped up by 2 times. This was done
using the :func:`os.scandir` function.