rails/rails — pull request #13693 by gaurish (2014-01-13 11:31:32+00:00)
Title: [JRuby] Fix incorrect RUBY_ENGINE value 

fix the typo in `RUBY_ENGINE` value, so is matches RUBY_ENGINE.

```ruby
jruby-1.7.9 :001 > RUBY_ENGINE
"jruby"
```
This way test is actually skipped on JRuby. let me know, if this needs to be changed to use `defined(JRUBY_VERSION)`.

#11700