bash must be declared as a Depends according to Simon Law's comment on the oprofile SRU[0].
[0] https://launchpad.net/distros/ubuntu/+source/oprofile/+bug/69455/comments/10 -- [SRU] spampd 2.30 https://launchpad.net/bugs/76861 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
