[Bug 44310] WritePrivateProfileString doesn't check for flush errors

https://bugs.winehq.org/show_bug.cgi?id=44310

--- Comment #12 from Alexandre Julliard  ---
(In reply to Fabian Maurer from comment #11)
> Oh I see... Well, I'd still say it's superfluous.

It probably doesn't matter in this case, but note that there's nothing that
says that a boolean must be TRUE, any non-zero value would do. So printing it
is not necessarily useless.

For the same reason, your &= trick is not a good idea.