cli: be lazy

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
Co-authored-by: Jiri Kuncar <jiri.kuncar@cern.ch>
Invenio-Kwalitee v0.2.0
cli: fix the ordering

* Fixes the output ordering so it's consistent between GitPython and
  pygit2.

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
docs: installing pygit2

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>