Update 7.x variant horology files to match the new US DST rules. It seems

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 8acd3cfb456c42afdd9b4b3c873820c94acb5dad
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2007-02-25T22:36:59Z
Releases: 7.4.17
Update 7.x variant horology files to match the new US DST rules.  It seems
likely that anyone wanting to run the regression tests in the future will
have up-to-date system timezone files, so this is more likely to work than
the old contents.

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