twitter/scalding — pull request #185 by azymnis (2012-09-15 00:14:20+00:00)
Title: Deal with empty arguments in Args.

Current if you call: ```scald MyJob.scala --input 1 2 3 4```, then ```args.list("input")``` will be:

```scala
List("1", "2", "", "3", "4")
```

This deals with this.