``python -m pylint ...`` adds the current working directory as the first element
of ``sys.path``. This opens up a potential security hole where ``pylint`` will import
user level code as long as that code resides in modules having the same name as stdlib
or pylint's own modules.
Close#3386
pylint-gui was removed, because it was deemed unfit for being included
in *pylint*. It had a couple of bugs and misfeatures, its usability was subpar
and since its development was neglected, we decided it is best to move on without it.
Part of #975
