From 0b0f1965fba57f1c75d92e36ac3cbc0d58396810 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 14 Feb 2022 12:16:07 -0800
Subject: [PATCH 2/2] tr: mention multibyte problem in man page

* man/tr.x: Document tr problem.
---
 man/tr.x | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/man/tr.x b/man/tr.x
index f28f1b0d6..b53103288 100644
--- a/man/tr.x
+++ b/man/tr.x
@@ -2,3 +2,12 @@
 tr \- translate or delete characters
 [DESCRIPTION]
 .\" Add any additional description here
+[BUGS]
+.PP
+Full support is available only for safe single-byte locales,
+in which every possible input byte represents a single character.
+The C locale is safe in GNU systems, so you can avoid this issue
+in the shell by running
+.B "LC_ALL=C tr"
+instead of plain
+.BR tr .
-- 
2.32.0