man/io_uring_register.2: fix typo
man/io_uring_register.2: fix typo

There's an extra 'o' in there, kill it.

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

axboe/liburing,axboe/liburing,axboe/liburing