lib: let get_git_version invoke git as all other commands do, without special options There is no need for _bare or _safe. It is fine to have '-c core.quotepath=false' before '--version', and it is perfectly fine to get a RepositoryError if things go terribly wrong.

[tox]
minversion = 1.8
envlist = py27-pytest

[testenv]
setenv =
    PYTHONHASHSEED = 0
deps =
    -r{toxinidir}/dev_requirements.txt
    python-ldap
    python-pam
commands =
    pytest: py.test {posargs}