Intent of yargs.mjs|title=yargs dsl tests bug #1758 continues to parse values in _ as numbers, when they look like numbers|occurrence=1

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/ 2 tests
- mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/yargs.mjs|title=yargs dsl tests bug #1758 continues to parse values in _ as numbers, when they look like numbers|occurrence=1 Introduced here
- mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/yargs.mjs|title=yargs dsl tests parserConfiguration supports --unknown-options-as-args|occurrence=1 Inherited yargs.mjs|title=yargs dsl tests parserConfiguration supports --unknown-options-as-args|occurrence=1