MFV of tzcode2009e:

Upgrade of the tzcode from 2004a to 2009e.

Changes are numerous, but include...

- New format of the output of zic, which supports both 32 and 64
  bit time_t formats.

- zdump on 64 bit platforms will actually produce some output instead
  of doing nothing for a looooooooong time.

- linux_base-fX, with X >= at least 8, will work without problems related
  to the local time again.

The original patch, based on the 2008e, has been running for a long
time on both my laptop and desktop machine and have been tested by
other people.

After the installation of this code and the running of zic(8), you
need to run tzsetup(8) again to install the new datafile.

Approved by:	wollman@ for usr.sbin/zic
MFC after:	1 month

1 files changed, 9 insertions, 4 deletions

diff --git a/usr.sbin/zic/README b/usr.sbin/zic/README
index 985a511..12420b9 100644
--- a/usr.sbin/zic/README
+++ b/usr.sbin/zic/README
@@ -1,4 +1,5 @@
-@(#)README	7.11
+@(#)README	8.2
+$FreeBSD$
 
 "What time is it?" -- Richard Deacon as The King
 "Any time you want it to be." -- Frank Baxter as The Scientist
@@ -52,8 +53,10 @@ substituting your desired installation directory for "$HOME/tzdir":
 
 To use the new functions, use a "-ltz" option when compiling or linking.
 
-Historical local time information has been included here not because it
-is particularly useful, but rather to:
+Historical local time information has been included here to:
+
+*	provide a compendium of data about the history of civil time
+	that is useful even if the data are not 100% accurate;
 
 *	give an idea of the variety of local time rules that have
 	existed in the past and thus an idea of the variety that may be
@@ -63,7 +66,9 @@ is particularly useful, but rather to:
 	system.
 
 The information in the time zone data files is by no means authoritative;
-if you know that the rules are different from those in a file, by all means
+the files currently do not even attempt to cover all time stamps before
+1970, and there are undoubtedly errors even for time stamps since 1970.
+If you know that the rules are different from those in a file, by all means
 feel free to change file (and please send the changed version to
 tz@elsie.nci.nih.gov for use in the future).  Europeans take note!