* Add incremental pylint make target
* add tox.ini and fetch/compare to origin/HEAD
* commands
* opportunistic caching
* Add small tool to avoid shell utils
* import pylint not sub-process. clean examples
* blacken few extra files
* just pylint
* update contributing.md
* tweak error msg, tox.ini
* fixup makefile, tox.ini
* command line tweaks
* add tools to lint-incr target
* Update tox.ini
* Revert "Update tox.ini"
Tox doesn't support globbing so this change wasn't valid that line was
commented on purpose. This reverts the previous tox.ini update and adds
a comment about the commented line to explain the intent.
This reverts commit c33c2745cf.
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Matthew Treinish <mtreinish@kortar.org>