fixup! test: do not require flags when executing a file

test/common/index.js

@@ -80,6 +80,10 @@ if (process.argv.length === 2 &&
           // If the binary is build without `intl` the inspect option is
           // invalid. The test itself should handle this case.
           (process.features.inspector || !flag.startsWith('--inspect'))) {
+        console.log(
+          'NOTE: The test started as child_process using these flags:',
+          util.inspect(flags)
+        );
         const args = [...flags, ...process.execArgv, ...process.argv.slice(1)];
         const options = { encoding: 'utf8', stdio: 'inherit' };
         const result = spawnSync(process.execPath, args, options);