fuel/oil — pull request #199 by takyam-git (2013-05-14 09:21:47+00:00)
Title: check key exists before trim

Error happend on test. like ``oil t --group=Model_Foo``

```
Notice - Undefined offset: 2 in PKGPATH/oil/classes/command.php on line 288
```

Signed-off-by: takyam