[newlib-cygwin/cygwin-3_4-branch] Cygwin: Update 3.4.3 release note

[Jon TURNEY]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=5366b3403c7008314ec45c1fff042d02df6be41e

commit 5366b3403c7008314ec45c1fff042d02df6be41e
Author: Jon Turney <jon.turney@dronecode.org.uk>
Date:   Fri Dec 16 10:34:38 2022 +0000

    Cygwin: Update 3.4.3 release note

Diff:
---
 winsup/cygwin/release/3.4.3 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/winsup/cygwin/release/3.4.3 b/winsup/cygwin/release/3.4.3
index bd3e725e7..eb1d6c638 100644
--- a/winsup/cygwin/release/3.4.3
+++ b/winsup/cygwin/release/3.4.3
@@ -4,3 +4,6 @@ Bug Fixes
 - Fix path handling to make sure virtual drives are never treated
   as symlinks.
   Addresses: https://cygwin.com/pipermail/cygwin/2022-December/252665.html
+
+- Revert incorrect optimization of wmemset()
+  Addresses: https://cygwin.com/pipermail/cygwin/2022-December/252699.html