bpo-39871: Fix an error in a news entry (GH-21749)

(cherry picked from commit 5463635)

Author: ZackerySpytz

Misc/NEWS.d/3.8.3rc1.rst

@@ -83,7 +83,7 @@ Wozniski.
 
 Fix a possible :exc:`SystemError` in ``math.{atan2,copysign,remainder}()``
 when the first argument cannot be converted to a :class:`float`. Patch by
-Zachary Spytz.
+Zackery Spytz.
 
 ..