Files in /etc containing empty VCSId header

Hi,

After a binary update using freebsd-update, all files in /etc contain
"empty" VCS Id headers, e.g.,

    $ head  /etc/nsswitch.conf 
    #
    # nsswitch.conf(5) - name service switch configuration file
    # $FreeBSD$
    #
    group: compat
    group_compat: nis
    hosts: files dns
    netgroup: compat
    networks: files
    passwd: compat

After migrating to git, I would've expected those to contain something
else or disappear completely. Is this expected and are there any plans
to remove them completely?

Best
Michael

-- 
Michael Gmelin