f3a0974 Support running the find_images_to_rebuild.py script using a virtualenv

Authored and Committed by mprahl 4 years ago
    Support running the find_images_to_rebuild.py script using a virtualenv
    
    The logging change is necessary since the fedmsg logging configuration
    will not have the default `formatters` and `handlers` set. If these
    aren't set, the script fails when configuring logging since there
    is no `console` handler.