Update test/parallel/test-benchmark-compare.js

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: jasnell

test/parallel/test-benchmark-compare.js

@@ -13,7 +13,7 @@ const compare = path.resolve(__dirname, '../../benchmark/compare.js');
 tmpdir.refresh();
 
 const csv = tmpdir.resolve('compare.csv');
-const result = spawnSync(process.execPath, [
+spawnSyncAndExitWithoutError(process.execPath, [
   compare,
   '--old', process.execPath,
   '--new', process.execPath,
@@ -29,13 +29,14 @@ const result = spawnSync(process.execPath, [
 ], {
   encoding: 'utf8',
   timeout: 30_000,
+}, {
+  stderr: '',
+  stdout(stdout) {
+    assert.match(stdout, /confidence\s+improvement\s+accuracy/);
+    assert.doesNotMatch(stdout, /"binary","filename"/);
+  },
 });
 
-assert.strictEqual(result.status, 0, result.stderr);
-assert.strictEqual(result.stderr, '');
-assert.match(result.stdout, /confidence\s+improvement\s+accuracy/);
-assert.doesNotMatch(result.stdout, /"binary","filename"/);
-
 const lines = readFileSync(csv, 'utf8').trim().split('\n');
 const filename = path.join('buffers', 'buffer-compare-offset.js');
 assert.strictEqual(lines[0],