GitPython clone https://github.com/sphinx-doc/sphinx as `sphinx-doc`

[chfw]

while, git clone https://github.com/sphinx-doc/sphinx would put it into sphinx folder. Hence this un-deterministic behavior fails our unit test for pypi-mobans:

https://travis-ci.org/moremoban/pypi-mobans/jobs/494338838

(moban-env) C-MBP:repos jaska$ ls
pyexcel-mobans	pypi-mobans	sphinx-doc

[chfw]

>>> from moban.repo import get_repo_name
>>> get_repo_name("https://github.com/sphinx-doc/sphinx.git")
'sphinx'
>>> get_repo_name("https://github.com/sphinx-doc/sphinx")
'sphinx-doc'