Subject: backref-multibyte-slow test fails on Cygwin

From: Bruno Haible <[email-masked]>
Date: Mon, 10 Jun 2024 14:08:05 +0200

Building the current grep (git master) with the current Gnulib
on Cygwin 3.5.3, I see a test failure:

FAIL: backref-multibyte-slow

The detailed log is attached.

Bruno