use meow in the CLI

cli.js

@@ -1,28 +1,14 @@
 #!/usr/bin/env node
 'use strict';
-var pkg = require('./package.json');
+var meow = require('meow');
 var osName = require('./');
-var argv = process.argv;
 
-function help() {
-	console.log([
-		'',
-		'  ' + pkg.description,
-		'',
-		'  Example',
-		'    os-name',
-		'    OS X Mavericks'
-	].join('\n'));
-}
-
-if (argv.indexOf('--help') !== -1) {
-	help();
-	return;
-}
-
-if (argv.indexOf('--version') !== -1) {
-	console.log(pkg.version);
-	return;
-}
+meow({
+	help: [
+		'Example',
+		'  os-name',
+		'  OS X Mavericks'
+	].join('\n')
+});
 
 console.log(osName());

package.json

@@ -37,6 +37,7 @@
     "linux"
   ],
   "dependencies": {
+    "meow": "^3.1.0",
     "osx-release": "^1.0.0",
     "win-release": "^1.0.0"
   },