Export optimist from runner-options instead of argv

The browser runner accepts additional options, so it's convenient to export
`optimist` instead of `optimist.argv`.

Author: lawnsea

test/runner

@@ -5,14 +5,18 @@ var nodeunit = require('nodeunit'),
     path = require('path'),
     AssertionError = require('assert').AssertionError;
 
-var argv = require('./runner-options');
+var argv = require('./runner-options').argv;
+
+if (argv.help) {
+  optimist.showHelp();
+  process.exit();
+}
 
 var fileFilter = [];
 var testFilter = [];
 
 Error.stackTraceLimit = 100;
 
-
 if (argv.suites) {
   fileFilter = argv.suites.replace(/\s/g, '').split(',');
 }

test/runner-options.js

@@ -16,10 +16,4 @@ var optimist = require('optimist')
     .alias('v', 'verbose')
     .describe('v', 'show all tests that are being run');
 
-var argv = optimist.argv;
-if (argv.help) {
-  optimist.showHelp();
-  process.exit();
-}
-
-module.exports = argv;
+module.exports = optimist;