visionmedia/jade — pull request #1622 by char101 (2014-08-11 02:20:01+00:00)
Title: Support whitespace after +

Add support for whitespace after `+` when calling mixin.

Both `-` and `=` support whitespace after it, so why don't `+` also supports it. Then we can align them like this (by preference of the user)

```
- stmt
= var
+ mixin
block
```
instead of

```
- stmt
= var
+mixin
block
```