Fix io_uring_sqe to use the names of the first member of each union

Now we're really future-proof... no more `opflags` creeping in.

When anonymous unions land, we can start using `accept_flags` etc.

Until then, code using this struct won't break when the kernel adds features.

Refs: https://github.com/ziglang/zig/issues/6349
Refs: https://github.com/ziglang/zig/issues/985
4bc1b7a7acJoran Dirk Greef committed on 9/19/2020, 4:50:24 PMparent92407bf
2 files changedLine totals unavailable