test: fix wrong method call

PR-URL: #34629
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Ricky Zhou <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: gengjiawen

test/parallel/test-fs-write-reuse-callback.js

@@ -35,5 +35,5 @@ const ondone = common.mustCall((err) => {
 write();
 function write() {
   const buf = Buffer.alloc(size, 'x');
-  fs.write(fd, buf, 0, buf.size, -1, ondone);
+  fs.write(fd, buf, 0, buf.length, -1, ondone);
 }