Enhance sysmerge(8) output so that it is more readable and make it more

clear if there are any warning/error or things that should be handled
manually.
e.g. output from going from 4.8 to current:

# sysmerge -s etc49.tgz -x xetc49.tgz
===> Populating temporary root under /var/tmp/sysmerge.k1BnD/temproot
===> Starting comparison
===> Installing /.profile
===> Installing /etc/bgpd.conf
<...>
===> Installing /root/.profile
===> Installing /var/www/conf/mime.types
===> Comparison complete
===> Checking directory hierarchy permissions (running mtree(8))
===> Output log available at /var/tmp/sysmerge.k1BnD/sysmerge.log
        *** WARNING: file(s) detected as obsolete: /etc/portal.conf /etc/security /var/msgs/bounds
        *** WARNING: some new/updated file(s) may require a reboot

feedback and ok sthen@

0 files changed, 0 insertions, 0 deletions