gruntjs/grunt — pull request #930 by opichals (2013-10-04 14:17:16+00:00)
Title: Avoid explicitly 'undefined' description tasks in `grunt --help` output.

The following task would not appear in the `grunt --help` output:
```
grunt.registerTask("minify", undefined, [
"cssmin",
"compress:js"
]);
```

whereas it would normally if the 'undefined' is omitted (including the Alias listing).