build: fix setuid check

At least in some shells test needs 3 arguments for string comparison

if test $foo=yes ...

will always be true.

if test $foo = yes ...

will perform a string comparison.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-By: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
1 file changed