heroku/heroku-buildpack-python — pull request #120 by agriffis (2014-02-17 20:04:35+00:00)
Title: Use a sed() function for unbuffered output.

In `bin/steps/collectstatic` the unbuffered output in `indent` is subverted by
calling `sed` first:

```shell python $MANAGE_FILE collectstatic --noinput 2>&1 | sed
'/^Copying/d;/^$/d;/^ /d' | indent
```

This commit fixes this by making `sed` itself unbuffered rather than putting
that logic in the `indent` function.