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/
hv_hid: Hyper-V HID driverHyper-V HID driver using hidbus/hms.Reviewed by: wulfMFC after: 1 weekPR: 221074Differential revision: https://reviews.freebsd.org/D38140