Subject: bug#75046: tr not convert UTF-8 characters

From: Andrey Voronov <[email-masked]>
Date: Mon, 23 Dec 2024 13:14:41 +0300

Hello,

The tr utility can't to convert UTF-8 non-ASCII letters to the
uppercase. Particulare cyrillic word:

$ echo зелено|tr '[:lower:]' '[:upper:]'
зелено

While english lesson translation is correctly do the same:
$ echo green|tr '[:lower:]' '[:upper:]'
GREEN

God bless you