- (djm) [openbsd-compat/bsd-snprintf.c] teach our local snprintf code the
   'j' (intmax_t/uintmax_t) and 'z' (size_t/ssize_t) conversions in case we
   start to use them in the future.
 - (djm) [openbsd-compat/bsd-snprintf.c] #ifdef noytet for intmax_t bits
   until we have configure support.