whitelist falke E722 in system/lib.py
whitelist falke E722 in system/lib.py

'E722 do not use bare except' wants us not to use except without type
restriction as it catches everything and the kitchen sink. Since we use
them to catch exceptions in test cases this is intentional as we implement
general purpose error handling on test failure there.

smira/aptly,smira/aptly,aptly-dev/aptly,aptly-dev/aptly,adfinis-forks/aptly,aptly-dev/aptly,adfinis-forks/aptly,adfinis-forks/aptly,smira/aptly