Correct SPDX-FileCopyrightText

[eksperimental]

This file was originally created on 2020-06-26,
therefore the copyright belonged to Plataformatec at the time.

[maennchen]

The tool i built to add the headers checked if a file is completely different since then and no longer adds old copyright. This is so different that the old copyright no longer applies: https://github.com/elixir-lang/elixir/blob/b059d5ad37fe412ef151935d4765f0cb5b12c7df/.github/workflows/ci.yml

[maennchen]

Just for background: The Copyright header states who has copyright on this file content right now, not who held it at some point in the past.

If you for example completely re-implement a module without looking at the old code, you could remove the old header.

[eksperimental]

This is the original PR: #10129

I don't know how your tool calculates the difference, but it is certainly the same file structure, with more content now.

[maennchen]

@eksperimental Oh sorry, I did not look at the full file right now. You are correct.

I'll see what happened tomorrow. That might affect more files.

[josevalim]

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