Synth 3.09 and 88 hyperthreads

At ${WORK} we have a so-called “monster server” as our resident FreeBSD builder. Unpatched Synth 3.09 handles up to 64 hyperthreads, i.e. 64 scanners and 128 builders. Our builder has 88 hyperthreads, necessitating an expansion to 88 scanners and 176 builders. Below is a “Git diff” ready for git apply.