RFR: 8317370: JavaFX runtime version is wrong at runtime [v2]

[John Neffenger]

> Please review these changes to the build timestamp and to the JavaFX runtime version available in the system properties.

John Neffenger has updated the pull request incrementally with one additional commit since the last revision:

  Update the documentation in UPDATING-VERSION.md

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1253/files
  - new: https://git.openjdk.org/jfx/pull/1253/files/4d9a8ebe..70c0de1c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1253&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1253&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx/pull/1253.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1253/head:pull/1253

PR: https://git.openjdk.org/jfx/pull/1253