=== Linux compatibility layer update

Links: +
link:https://wiki.freebsd.org/Linuxulator[Linuxulator status Wiki page] URL: link:https://wiki.freebsd.org/Linuxulator[] +
link:https://wiki.freebsd.org/LinuxApps[Linux app status Wiki page] URL: link:https://wiki.freebsd.org/LinuxApps[]

Contact: Dmitry Chagin <dchagin@FreeBSD.org>

The goal of this project is to improve FreeBSD's ability to execute unmodified man:linux[4] binaries.

As of gitref:22dca7acf775[repository=src], xattr system calls are implemented.
That makes it possible to use Linux rsync.

As of gitref:bbe017e0415a[repository=src], ioprio system calls are implemented.
That makes it possible to debootstrap Ubuntu 23.04.