node --require fails with Windows path separator

[targos]

• Version: 10.7.0
• Platform: Windows 10 x64
• Subsystem: bootstrap

with test.js in cwd, try to run: node -r .\test.js

Error:

internal/modules/cjs/loader.js:583
    throw err;
    ^

Error: Cannot find module '.\test.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
    at Function.Module._load (internal/modules/cjs/loader.js:507:25)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at Module._preloadModules (internal/modules/cjs/loader.js:805:12)
    at preloadModules (internal/bootstrap/node.js:575:7)
    at startup (internal/bootstrap/node.js:268:9)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:596:3)

[joaocgreis]

Fix attempt: #22186