Time zone updates in latest patch

Just a public service announcement for those of you
living in a recently updated time zone.  British Columbia,
Canada recently stopped daylight savings time transitions
and standardized on Pacific Daylight Time (PDT), i.e.
no one hour fallback this fall.  This effectively seems
to have put us in Mountain Standard Time according
to the new TZsetup program.

I noticed I needed to rerun:

  # tzsetup America/Vancouver

on all my servers (and jails!) to reset the time zones
properly.

Some symptoms of the weirdness were thunderbird having
incorrect times on messages (a couple hours off).  The
settings showed that it was using the 'System time zone'
which before resetting was listed as 'Etc/+8' or something
incorrect like that.

Heads up.