Missing documentation for `strip` build variables

Description of the bug:

I'm looking at https://bazel.build/docs/cc-toolchain-config-reference#cctoolchainconfiginfo-build-variables in order to figure out which build variables are relevant to the invocation of the strip tool. From that, it seems there are only two, input_file and stripopts. Those are not enough though, the output_file variable seems to be used as well, from what I can see in the source code. For example, this is from tools/osx/crosstools/cc_toolchain_config.bzl:

    strip_action = action_config(
        action_name = ACTION_NAMES.strip,
        flag_sets = [
            flag_set(
                flag_groups = [
                    flag_group(flags = ["-S", "-o", "%{output_file}"]),
                    flag_group(
                        flags = ["%{stripopts}"],
                        iterate_over = "stripopts",
                    ),
                    flag_group(flags = ["%{input_file}"]),
                ],
            ),
        ],
        tools = [tool(path = "/usr/bin/strip")],
    )

What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

No response

Which operating system are you running Bazel on?

Ubuntu

What is the output of bazel info release?

5.1.1

If bazel info release returns development version or (@non-git), tell us how you built Bazel.

No response

What's the output of git remote get-url origin; git rev-parse master; git rev-parse HEAD ?

No response

Have you found anything relevant by searching the web?

No response

Any other information, logs, or outputs that you want to share?

No response