Deprecated SPDX license identifiers

[chenrui333]

👋 GPL-2.0 is a deprecated SDPX license identifier, it would be preferred to use GPL-2.0-only or GPL-2.0-or-later (see here for details).

cc @ndw

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relates to Homebrew/homebrew-core#79223

[ndw]

There are several license files in the repository, some I can change and some I can't. Where is BrewTestBot finding the identifier it doesn't like, exactly?

[chenrui333]

If you dont mind, I can tag you in that PR.

Basically, this license field is using outdated license.

[ndw]

That's in the Brew formula, nothing I have any direct control over. I assume that's coming from this license in the POM:

          license {
            name = 'GNU General Public License version 2'
            url = 'https://www.gnu.org/licenses/gpl-2.0.txt'
            distribution = 'repo'
          }

I'm happy to change it to something more SPDX friendly that means "2.0 or later" but a quick browse around the gnu.org site didn't turn up anything obvious. Suggestions welcome.

[chenrui333]

@ndw sorry about the late response, yeah, looks like the GNU site does indeed not list the newly released SPDX identifiers. That is interesting.

Anyway, GPL-2.0+ or GPL-2.0-or-later is something I am looking for.