exactness: inspect: use logical OR instead bitwise XOR

exactness: inspect: use logical OR instead bitwise XOR

Coverity pointed these out as we deferences after null check.
Looking into it showed these use of a bitwise operator on vars where it
does not make any sense (to me). They look like wrongly done NULL
checks. Switchign them over to a logical OR operator.

CID: 1419876, 1419869, 1419868, 1419862, 1419854, 1419849

Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Differential Revision: https://phab.enlightenment.org/D11432