vendor/node_modules/mocha/bin/mocha in stylus-source-0.27.1 vs vendor/node_modules/mocha/bin/mocha in stylus-source-0.27.2

@@ -21,10 +21,11 @@
     case '-gc':
     case '--expose-gc':
       args.unshift('--expose-gc');
       break;
     default:
-      args.push(arg);
+      if (0 == arg.indexOf('--trace')) args.unshift(arg);
+      else args.push(arg);
       break;
   }
 });
 
 var proc = spawn(process.argv[0], args, { customFds: [0,1,2] });