fsync (and friends, like open(O_SYNC)). This has two side-effects: making
software that writes data safely to disk a lot quicker and making this
software no longer crash safe.
DO NOT use libeatmydata on software where you care about what it
stores. It's called libEAT-MY-DATA for a reason.
PR: ports/142892
Submitted by: Attila Nagy <bra at fsn.hu>
