test/runtests.sh: check for root before using /dev/kmsg
test/runtests.sh: check for root before using /dev/kmsg

Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing