test/accept: fix minus one error when calculating multishot_mask

We don't need to minus one for the s_fd[i] since the returned cqe.res
is already the fixed file table slot which is indexed from zero.

Fixes: 66cf84527c34 ("test/accept.c: add test for multishot mode accept")
Signed-off-by: Hao Xu <howeyxu@tencent.com>
Link: https://lore.kernel.org/r/20220617143603.179277-3-hao.xu@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 file changed