test-commit: remove extra cd ..
This specific cd .. leaves the base directory of the test ($TESTTMP).
Removing it avoids that test artifacts (e.g. files) are created
outside of the base directory.
notify: various fixes to docstring
Typo corrections, grammar adjustments, clarity improvements.
tests: reintroduce globs in test-convert-authormap.t
They are needed on windows and were accidentally removed in
eaf6a6d7f015.