Fixes:
$ PATH="$VIRTUAL_ENV/bin:$PATH" ./scripts/run-flake8
Analyzing 187 Python scripts
./installdir/usr/lib/python3.8/site-packages/sepolicy/manpage.py:720:20: E713 test for membership should be 'not in'
./installdir/usr/lib/python3.8/site-packages/sepolicy/manpage.py:774:17: E117 over-indented
./python/sepolicy/build/lib/sepolicy/manpage.py:720:20: E713 test for membership should be 'not in'
./python/sepolicy/build/lib/sepolicy/manpage.py:774:17: E117 over-indented
./python/sepolicy/sepolicy/manpage.py:720:20: E713 test for membership should be 'not in'
./python/sepolicy/sepolicy/manpage.py:774:17: E117 over-indented
The command "PATH="$VIRTUAL_ENV/bin:$PATH" ./scripts/run-flake8" exited with 1.

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>