Keeping /etc/localtime up-to-date

[dieterbsd at engineer.com]

> And while I (think I) recall that the equivalent of /etc/localtime
> was implemented in some version of SunOS many years ago as a symlink,
> I believe that approach could be problematic for FreeBSD, as it
> could impose some unintended requirements on some of the start-up
> scripts.

I have been running FreeBSD and NetBSD with /etc/localtime being
a symlink for years and have not seen any problems as a result.