check-compose: try to rejig email recipients for new system
    
    I changed how check-compose upstream does email recipient config
    to try and fix the 'get Atomic-related emails to Atomic people'
    problem again after Fedora-Atomic composes went away. This is
    an attempt to adjust the play to populate the config file for
    that change. Let's see what blows up!
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>