The WITHOUT_ACCT switch is supposed to omit tools related to process
accounting, namely accton and sa. ac(8) is just a simple tool that
prints statistics based on data in the utx.log database. It has nothing
to do with the former.
control over the result of buildworld and installworld; this especially
helps packaging systems such as nanobsd
Reviewed by: various (posted to arch)
MFC after: 1 month