pypa/pip — pull request #2175 by msabramo (2014-12-12 17:16:52+00:00)
Title: install: "Cleaning up..." msg: info => debug

This message isn't particularly useful to an end user and clutters the output IMHO.

Helps a (tiny) bit with some past issues that raised an issue about pip being too verbose:

* https://github.com/pypa/pip/issues/1070
* https://github.com/pypa/pip/issues/1132