Invalid license tag

[Finomnis]

cargo-licenses does not pick up this crate's license properly because it's not a proper licence string.

/ is not a defined separator, so MIT/Apache-2.0 does not get separated.

The proper tag is MIT OR Apache-2.0 (see for example https://github.com/serde-rs/serde/blob/master/serde_core/Cargo.toml)

So when I run a license check in my CI, I get:

$ cargo-licenses check --allow MIT --allow Apache-2.0
License check failed: License check found these violations:
Crate 'ringbuf': sub-license 'MIT/Apache-2.0' is NOT in the allow list.

When I run cargo-licenses generate on my repository, I get:

# License Report
This report lists direct dependencies (async) and their matched licenses.

- **either** (version: `1.16.0`) → *MIT OR Apache-2.0*
- **sha2** (version: `0.11.0`) → *MIT OR Apache-2.0*
- **ciborium** (version: `0.2.2`) → *Apache-2.0*
- **miette** (version: `7.6.0`) → *Apache-2.0*
- **hex** (version: `0.4.3`) → *MIT OR Apache-2.0*
- **serde_repr** (version: `0.1.20`) → *MIT OR Apache-2.0*
- **serialport** (version: `4.9.0`) → *MPL-2.0*
- **crc** (version: `3.4.0`) → *MIT OR Apache-2.0*
- **serde_bytes** (version: `0.11.19`) → *MIT OR Apache-2.0*
- **base64** (version: `0.22.1`) → *MIT OR Apache-2.0*
- **log** (version: `0.4.30`) → *MIT OR Apache-2.0*
- **polonius-the-crab** (version: `0.5.0`) → *Zlib OR MIT OR Apache-2.0*
- **ringbuf** (version: `0.5.0`) → *MIT/Apache-2.0*
- **strum** (version: `0.28.0`) → *MIT*
- **chrono** (version: `0.4.44`) → *MIT OR Apache-2.0*
- **thiserror** (version: `2.0.18`) → *MIT OR Apache-2.0*
- **rand** (version: `0.10.1`) → *MIT OR Apache-2.0*
- **regex** (version: `1.12.3`) → *MIT OR Apache-2.0*
- **serde** (version: `1.0.228`) → *MIT OR Apache-2.0*

ringbuf is the odd one out.