Auto merge of #2227 - tbu-:pr_pycache, r=alexcrichton
authorbors <bors@rust-lang.org>
Fri, 18 Dec 2015 17:38:01 +0000 (17:38 +0000)
committerbors <bors@rust-lang.org>
Fri, 18 Dec 2015 17:38:01 +0000 (17:38 +0000)
Running `make` creates the `src/etc/__pycache__` directory which should
not be checked in.


Trivial merge