Avoid gratuitously rewriting "!x" as "!x != 0".  The result of the negation is already 0 or 1, so there's nothing else we need to do.
Avoid gratuitously rewriting "!x" as "!x != 0".  The result of the
negation is already 0 or 1, so there's nothing else we need to do.

samuelhavron/obliv-c,samuelhavron/obliv-c,samuelhavron/obliv-c,samuelhavron/obliv-c