MFH: r447919

• Bump Revision to fix ioctl sign-extension warning
• Cleanup Makefile

PR: 221241
Submitted by: <peo@bsdlabs.com>
Reviewed by: matthew (mentor)
Approved by: matthew (mentor)
Differential Revision: https://reviews.freebsd.org/D11993

Approved by: ports-secteam (feld)