Updates to address docstring code scan issues, add flake8 configuration

[asears]

First time contributor. Flake8 and some other improvement libraries could be added to the project's requirements_test.txt and build process if required.

This changes adds some missing docstring values and flake8 configuration for 120 character limit and covers bandit/blacklist and bandit/cli. Flake8 yelps about capitalization and periods so addressed that too.

Signed-off-by: asears asears@users.noreply.github.com

[ericwb]

By removing the '===', this changes the font from a heading to normal paragraph text. However, this text is intended to be a heading. See https://bandit.readthedocs.io/en/latest/blacklists/blacklist_calls.html

[asears]

Reverting first line missing period warning update.

[ericwb]

By removing the '===', this changes the font from a heading to normal paragraph text. However, this text is intended to be a heading. See https://bandit.readthedocs.io/en/latest/blacklists/blacklist_calls.html

[asears]

Reverting first line missing period warning update.

[ericwb]

Almost all of the codebase is already conforming to a 80 char max line length (inherited from checks when in OpenStack). Even though 80 can be short at times, I think it would be best to keep the pattern. Thanks

[asears]

Reverting this check. 119 is the limit for Github PR's, will stay with OpenStack convention.

[asears]

Wondering if line too long warning should be ignored individually for those single-line docstring comments, or should the docstring be split up?

bandit\formatters\screen.py:98:80: E501 line too long (99 > 79 characters)
    """Output issue str returns a list of lines that should be added to the existing lines list."""
                                                                               ^
bandit\formatters\text.py:44:80: E501 line too long (103 > 79 characters)
    """Get verbose details including files in scope, score, SEVERITY and CONFLUENCE, files excluded."""
                                                                               ^
bandit\formatters\text.py:71:80: E501 line too long (99 > 79 characters)
    """Output issue str returns a list of lines that should be added to the existing lines list."""

[ericwb]

Yeah, we should line wrap those lines that are 80 or more. I already merged this commit, so feel free to create a new PR to handle above.

[ericwb]

LGTM