Adjust Slack tests to demonstrate that we send the entire backtrace now
Adjust Slack tests to demonstrate that we send the entire backtrace now

smartinez87/exception_notification,DennisSchmidt/exception_notification,trevorturk/exception_notification,DennisSchmidt/exception_notification,trevorturk/exception_notification,Axxiss/exception_notification,Aschen/exception_notification,trevorturk/exception_notification,Aschen/exception_notification,Axxiss/exception_notification,Axxiss/exception_notification,DennisSchmidt/exception_notification,Aschen/exception_notification,smartinez87/exception_notification