chore: tag prerelease builds with -pre

[Kha]

No description provided.

[digama0]

Could you expand the comment in module.cpp for olean_header::lean_version to mention the string formats one can expect for normal and prerelease versions? My understanding is that legal values include 4.13.0, 4.13.0-rc1 and 4.13.0-rc2-pre, and I'm not sure where the nightly-2024-10-18 part gets involved in the version string (is the comment correct?). In particular, the version string contains neither the leading v nor the leanprover/lean4: repo marker used in elan toolchain names.

[digama0]

Maybe this is just future proofing, but as written I think g_short_version_string is unneeded since it is equivalent to the compile time constant LEAN_VERSION_STRING.

[leanprover-community-bot]

Mathlib CI status (docs):

• ✅ Mathlib branch lean-pr-testing-5943 has successfully built against this PR. (2024-11-04 13:42:34) View Log
• ✅ Mathlib branch lean-pr-testing-5943 has successfully built against this PR. (2024-11-05 11:02:03) View Log

[Kha]

Could you expand the comment in module.cpp for olean_header::lean_version to mention the string formats one can expect for normal and prerelease versions? My understanding is that legal values include 4.13.0, 4.13.0-rc1 and 4.13.0-rc2-pre, and I'm not sure where the nightly-2024-10-18 part gets involved in the version string (is the comment correct?). In particular, the version string contains neither the leading v nor the leanprover/lean4: repo marker used in elan toolchain names.

I added a bit. In particular, -rc2-pre is not an option.

is the comment correct?

You could test it!