tests: set EMAIL for Git commit test_push_on_locked_repo_by_other_user_git - it _is_ necessary on some machines 7db1bcf1d95b too aggressively removed setting EMAIL (which was set in a way that didn't work on Windows). On some machines the git commit in _add_files_and_push would fail with 'Please tell me who you are' and the actual test check of "Repository %s locked by user" would fail. On other machines - also without any local git configuration - it works fine. https://git-scm.com/book/en/v2/Git-Internals-Environment-Variables#Committing suggests that it might be a good idea to set it ... so let's do it. (Patch modified by Mads Kiilerich)

[pytest]
# only look for tests in kallithea/tests
python_files = kallithea/tests/**/test_*.py
addopts =
    # --verbose
    # show extra test summary info as specified by chars (f)ailed, (E)error, (s)skipped, (x)failed, (X)passed, (w)warnings.
    -rfEsxXw
    # Shorter scrollbacks; less stuff to scroll through
    --tb=short