Bug #81697 MySQL CLI WARNINGS should goto stderr

Description:
MySQL CLI does not send warnings to stderr, this is unexpected as well as inconsistent with the various perl and shell utilities also shipped with mysql.

this is not WARNINGS as reported by mysqld from queries, but WARNINGS from the CLI itself.

How to repeat:
> mysql --version
mysql  Ver 14.14 Distrib 5.7.12, for Linux (x86_64) using  EditLine wrapper

> cat ~/.my.cnf
[client]
ssl                = true

> mysql --version 1>/dev/null
>

> mysql --version 2>/dev/null
WARNING: --ssl is deprecated and will be removed in a future version. Use --ssl-mode instead.
mysql  Ver 14.14 Distrib 5.7.12, for Linux (x86_64) using  EditLine wrapper

Suggested fix:
WARNINGS should goto stderr for all mysql CLI utilities

Potential partial fix

Attachment: 0005-Fix-Bug-81697.patch (application/octet-stream, text), 1.61 KiB.

Hello John Cesario,

Thank you for the report.

Thanks,
Umesh

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