RFR: 8294317: Insufficient build rules for tzdb.dat

[Joe Wang]

On Fri, 23 Sep 2022 22:10:03 GMT, Naoto Sato <naoto at openjdk.org> wrote:

> The current makefile for `tzdb.dat` won't recompile if some dependent files (e.g. `VERSION`) are updated. Adding all files under the tzdb directory to the dependency will fix this issue.

Marked as reviewed by joehw (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/10415