b37adbbe31
* Rename `OFlag`/`AtFlag` to `OFlags`/`AtFlags`. This makes them consistent with `PollFlags` and common usage of bitflags types in Rust code in general. POSIX does tend to use names like `oflag` and `flag`, so this is in mild disagreement with POSIX style, however I find this particular aspects of POSIX confusing because these values hold multiple flags. * rustfmt