Shopify/liquid — pull request #267 by djreimer (2013-10-09 23:11:57+00:00)
Title: Add default filter to standard filters

We use Liquid for rendering email templates in our email marketing application. This filter allows you to specify a default value if the variable passed in is blank. I've extracted this into a gem but I'd love to see this in Liquid proper.

```
Dear {{ first_name | default: 'customer' }},

...
```