ruby/ruby — pull request #505 by ka8725 (2014-01-13 14:56:13+00:00)
Title: Fix failed example of delegator usage

09 is not valid digit in Ruby:

```shell
$ irb --simple-prompt
>> 09
SyntaxError: (irb):1: Invalid octal digit
from /usr/local/opt/rbenv/versions/2.1.0/bin/irb:11:in `

'
>>
```