Issue #17557: Fix os.getgroups() to work with the modified behavior of
getgroups(2) on OS X 10.8.  Original patch by Mateusz Lenik.
diff --git a/Misc/NEWS b/Misc/NEWS
index ee5c8f0..e3394c4 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -26,6 +26,9 @@
 Library
 -------
 
+- Issue #17557: Fix os.getgroups() to work with the modified behavior of
+  getgroups(2) on OS X 10.8.  Original patch by Mateusz Lenik.
+
 - Issue #18455: multiprocessing should not retry connect() with same socket.
 
 - Issue #18513: Fix behaviour of cmath.rect w.r.t. signed zeros on OS X 10.8 +