cyberdelia/django-pipeline — pull request #184 by fabianbuechler (2013-02-22 10:06:23+00:00)
Title: Avoid CompressionError for newlines in stderr

UglifyJS2 prints two newlines `'\n\n'` into stderr for me.
The `if stderr` in the `SubProcessCompressor.execute_command` raises a CompressionError if that happens.
I've added a `strip()` call to avoid that.