Now that run_subtests() understands 77 as skipped, make the subtests
that bail out early on a missing capability or precondition exit 77
instead of exit 0. Partial skips that run after real assertions, and
exits from inside subshells, are deliberately left untouched.
Signed-off-by: Paul Meyer <katexochen0@gmail.com>
Paul Meyer
Yu Watanabe