[newlib-cygwin] Cygwin: Add buffer underrun fix to release notes

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=efade43bd5f684c6dc78c1115f4b82587af47dac

commit efade43bd5f684c6dc78c1115f4b82587af47dac
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Tue May 29 18:31:07 2018 +0200

    Cygwin: Add buffer underrun fix to release notes
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/release/2.10.1 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/winsup/cygwin/release/2.10.1 b/winsup/cygwin/release/2.10.1
index af7c83d..cdd63af 100644
--- a/winsup/cygwin/release/2.10.1
+++ b/winsup/cygwin/release/2.10.1
@@ -22,3 +22,6 @@ Bug Fixes
 
 - Fix a CPU affinity problem when creating /proc/cpuinfo output.
   Addresses: https://cygwin.com/ml/cygwin/2018-04/msg00118.html
+
+- Fix a buffer underrun problem in Win32 path normalization.
+  Addresses: https://cygwin.com/ml/cygwin/2018-05//msg00017.html