Remove residual blank line at start of MakefileThis is a residual of the $FreeBSD$ removal.MFC After: 3 days (though I'll just run the command on the branches)Sponsored by: Netflix
sys: Remove $FreeBSD$: one-line sh patternRemove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
Add tarfs, a filesystem backed by tarballs.Sponsored by: Juniper Networks, Inc.Sponsored by: Klara, Inc.Reviewed by: pauamma, impDifferential Revision: https://reviews.freebsd.org/D37753