Fix python 3.x compatibility for test_zdist
Created originally on Bitbucket by felixonmars (Felix Yan)
Was already merged in Bitbucket before import, marked as merged by the import user
In the latest version, test_zdist failed on Python 3 with the following error:
----------------------------- Captured stderr call -----------------------------
File "setup.py", line 8
print '_make_setuptools_api: in pre_run:',
^
SyntaxError: Missing parentheses in call to 'print'
This PR addresses this problem. Tested with Python 2.7.10/3.4.3.