[tz] EST5EDT should not resolve to America/New_York because they have different offsets

Hello - I recently filed a GitHub issue against the perl DateTime::TimeZone library, which uses your database: https://github.com/houseabsolute/DateTime-TimeZone/issues/58#issue-286444592... I noticed that EST5EDT now resolves to America/New_York. This is problematic because the two do not have the same offset - EST5EDT is -5:00 and America/New_York is -04:56:02. My ticket was closed because the behavior appears to be caused by changes in your database in commit a0b09c0 ( https://github.com/eggert/tz/commit/a0b09c0230089252acf2eb0f1ba922e99f7f4a03 ). Is this something that you would consider changing? Thanks! - Austin Hill