Mattermost: fix backtrace dump size
Mattermost: fix backtrace dump size

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