Update NEWS entry

vstinner · vstinner · commit 7c2e09e1b063 · 2025-10-11T20:56:43.000+02:00
diff --git a/Misc/NEWS.d/next/Library/2025-10-11-20-03-13.gh-issue-139482.du2Stg.rst b/Misc/NEWS.d/next/Library/2025-10-11-20-03-13.gh-issue-139482.du2Stg.rst
@@ -1,2 +1,3 @@
-Optimize :data:`os.environ.clear() <os.environ>` by calling ``clearenv()``
-when this function is available. Patch by Victor Stinner.
+Optimize :data:`os.environ.clear() <os.environ>` by calling
+:manpage:`clearenv(3)` when this function is available.
+Patch by Victor Stinner.
