Subject: Re: --suppress-* options error out, apparently passing to format-patch too.

From: Junio C Hamano <[email-masked]>
Date: Mon, 09 Feb 2026 16:22:44 -0800

[email-masked] writes:

> [jimc@godzilla wk-test]$ git send-email --to=$trybot --no-to
> --suppress-to --no-cc --dry-run
> 0001-dyndbg-fix-NULL-ptr-on-i386-due-to-section-alignment.patch
> fatal: unrecognized argument: --suppress-to
> format-patch -o /tmp/tXB5tLINzc --suppress-to: command returned error: 128
> [jimc@godzilla wk-test]$ git send-email --to=$trybot --no-to
> --suppress-to=all --no-cc --dry-run
> 0001-dyndbg-fix-NULL-ptr-on-i386-due-to-section-alignment.patch
> fatal: unrecognized argument: --suppress-to=all
> format-patch -o /tmp/Y47eIqlSDG --suppress-to=all: command returned error: 128
>
> --no-to --no-cc also doesnt work (as Id expect), it still wants to cc
> to one given in patch-file.

My findings from a quick read of the send-email script:

 * There are --suppress-cc and --suppress-from but there is no
   --suppress-to option at all.

 * There are --no-cc and --no-to but they suppress cc and to
   addresses from the command line (and probably from the
   configuration); addresses a specific patch file lists to be sent
   are not affected.

Documentation updates might be needed.