This patch fixes a failure of virtual_reader_test, where both the test
itself and the cql_test_env initialize the messaging_service to listen
on the same address and port, triggering an assert in
posix_ap_server_socket_impl::accept().
Signed-off-by: Duarte Nunes <duarte@scylladb.com>
Message-Id: <20170423104240.21275-1-duarte@scylladb.com>