justjohn/twig.js — pull request #196 by tristanlins (2014-12-29 06:40:58+00:00)
Title: Fix format filter handling of leading sign.

Before:
```
"%+05d"|format(123) == "0+123"
"%+05d"|format(-123) == "0-123"
```

After:
```
"%+05d"|format(123) == "+0123"
"%+05d"|format(-123) == "-0123"
```