Forked cluster does not fixup process.execArgv when executed by module.runMain()

README.md

node --expose_gc ./wrapper.js ./payload.js

Expected:

[Function: gc] true
[Function: gc]

Actual (v15.5.1)

[Function: gc] true
undefined

payload.js

const cluster = require("cluster");
if (cluster.isMaster) {
  console.log(globalThis.gc, cluster.isMaster);
  cluster.fork();
} else {
  console.log(globalThis.gc);
  process.kill(process.pid);
}

wrapper.js

#!/usr/bin/env node

const { isAbsolute, join } = require("path");
const args = process.argv[process.argv.length - 1];
const filename = args[0];
if (!isAbsolute(filename)) {
  args[0] = join(process.cwd(), filename);
}
process.argv = ["node"].concat(args);
process.execArgv.unshift(__filename);
require("module").runMain();