REPL: cannot specify rhino as a target

Am trying to use https://babeljs.io/repl to compile some javascript for the rhino target, but no matter how I try to specify the target, I keep getting an error message like `BABEL] /repl.js: Unknown browser query `*****`. Maybe you are using old Browserslist or made typo in query. (While processing: "base$0")`

Tried:
- `rhino`
- `rhino 1.7.14`
- `{rhino: '1.7.14'}`
- `{"rhino": "1.7.14"}`
- etc

But always the same error message.

Start by reproducing the failure in the Babel REPL at babeljs.io/repl with the listed Rhino target forms, then trace how the REPL passes targets to Browserslist. Done means Rhino target input is handled without the reported unknown-browser-query error, with the resulting compilation behavior verified.

Written by the indexing model from the issue text.