tj/commander.js — pull request #291 by Quentin01 (2014-12-02 13:24:58+00:00)
Title: Fix a bug with variadic argument

I noticed that with a variadic argument, `program.args` contains additional arguments in the end.
For example:
```js
#!/usr/bin/env node

'use strict';

var program = require('commander');

program
.version('0.0.1');

program
.command('stats [files...]')
.action(function stats(files) {
console.log(program.args);
});

program.parse(process.argv);

```
And the output:
```shell
$ ./program.js stats test1 test2 test3 test4
[ [ 'test1', 'test2', 'test3' ],
{ commands: [],
options: [],
_execs: [],
_args: [ [Object] ],
_name: 'stats',
parent:
{ commands: [Object],
options: [Object],
_execs: [],
_args: [],
_name: 'bug',
Command: [Function: Command],
Option: [Function: Option],
_version: '0.0.1',
_events: [Object],
rawArgs: [Object],
args: [Circular] } },
'test3' ,
'test4' ]
```
My fix remove residues of arguments at the end of `program.args`