(cherry picked from commit 054e0914)

* bpo-30290: IDLE: Refactor help_about to PEP8 names (#1714)

Patch by Cheryl Sabella.
(cherry picked from commit 5a346d5d)

* IDLE test_help_about: edit and add test. (#1838)

Coverage is now 100%
(cherry picked from commit eca7da0f)