rubinius/rubinius — pull request #1641 by liff (2012-03-28 15:59:28+00:00)
Title: Fix infinite loop when parsing RBXOPT

The VM goes into infinite loop when parsing RBXOPT that contains spaces.

Here's how to reproduce:

```
RBXOPT=" -X19" irb
# ..irb prompt never appears
```

Sorry there's no spec for this but I wasn't sure how to write one when the VM just hangs :)