Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.3.0
When rmail isn't installed, bashbug makes a dead.bashbug file and prints
an error message saying rmail isn't installed. That error message could
include this mailing list address to make error reporting easier instead
of the end user having to search for somewhere to post it.