Make sanity check more sane
Make sanity check more sane

Having a processor count of 0 wouldn't be very sane either, so let's
clamp within the range of 1..32 (inclusive).

Signed-off-by: Wincent Colaiuta <c76ac2e9cd86441713c7dfae92c451f3e6d17fdc@wincent.com>

wincent/command-t,1234-/command-t,wincent/command-t,simichaels/dotfiles,mtimkovich/command-t,1234-/command-t,simichaels/dotfiles,vrkansagara/command-t,besarthoxhaj/command-t,lencioni/command-t,mtimkovich/command-t,yrro/command-t,lencioni/command-t,wincent/command-t,supriyantomaftuh/command-t,vrkansagara/command-t,supriyantomaftuh/command-t,yrro/command-t,besarthoxhaj/command-t