gruntjs/grunt-contrib-stylus — pull request #97 by prog13 (2014-04-14 12:20:04+00:00)
Title: Fixed an error when calling plugin with parameters via `use` directive

Hi there!
Currently, if you try to call any plugin with any number of parameters specified, you'll get an error.
In my case, I was trying to use [autoprefixer-stylus](https://github.com/jenius/autoprefixer-stylus) plugin in task shown below:
```
module.exports = function (grunt) {
grunt.initConfig({
stylus: {
options: {
use: [require('autoprefixer-stylus')('last 2 versions', 'ie 8', 'ie 9')]
},
...
}
} );

grunt.loadNpmTasks('grunt-contrib-stylus');
grunt.registerTask('default', [ 'stylus' ]);
};
```

I've added test case and fixed an issue.