Re: S_ARCH1 / S_ARCH2 / strmode(3)

[RVP <rvp%SDF.ORG@localhost>]

> What I'm wondering is whether supporting this file
> type is in fact something that's (still) useful.
>
> The "archive bit"[1] sounds like something that might
> be referred to here?

Yeah, `S_ARCH1' is an MS-DOS thing:

```
$ printf $'S_ARCH1\nS_ARCH2\n' | fgrep -rf - /usr/src/
[..]
/usr/src/sys/fs/msdosfs/msdosfs_vnops.c:		vap->va_mode  |= S_ARCH1;
[...]
$
```

Nobody seems to use `S_ARCH2'.

-RVP