[fix #5524] very long article title without spacing

https://github.com/joomla/joomla-cms/issues/5524
After this fix
![2014-12-26 22 46 19](https://cloud.githubusercontent.com/assets/2418167/5558120/e6ec8926-8d54-11e4-8c8e-1b750a85c34a.png)