git: 84631082f67b..3c540f969430 - vendor/libarchive - vendor branch updated

From: Martin Matuska <mm_at_FreeBSD.org>
Date: Fri, 18 Feb 2022 23:50:11 UTC
The branch vendor/libarchive has been updated by mm:

URL: https://cgit.FreeBSD.org/src/log/?id=84631082f67b..3c540f969430

3c540f969430 Update vendor/libarchive to libarchive/libarchive@72ce1ff7c