The attached patch fix the issue. The bashism is replaced by a call to cut.
** Attachment added: "Debdiff from current version in Ubuntu" http://librarian.launchpad.net/6727973/dspam_3.6.8-4ubuntu1.diff -- bashism in /etc/cron.daily/libdspam7-drv-mysql https://launchpad.net/bugs/88989 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs