Where does FreeBSD tr -C differ from tr -c?

[Andrey Chernov]

On 06.04.2013 2:10, Cedric Blancher wrote:
>> I tried this (ksh93) test script but it NEVER produces a difference in
>> the en_US.utf8 and fr_FR.utf-8 locales:

> Anyone? FreeBSD tr implements option -C but there are no usage
> *examples* where exactly it differs from -c.

For -C you need multibyte locale.