* INCR-229 ran modernize on common/lib/xmodule/xmodule/[a-g]*.py except for graders.py * fix a couple xss-commit-linter issues
Co-Authored-By: Jean-Michel Claus <jmc@edx.org> Co-Authored-By: Brian Talbot <btalbot@edx.org> Co-Authored-By: Tim Babych <tim@edx.org> Co-Authored-By: Oleg Marshev <oleg@edx.org> Co-Authored-By: Chris Rodriguez <crodriguez@edx.org>