RFR: CODETOOLS-7903130: Update LICENSE

[Jonathan Gibbons]

Please review changes to update the LICENSE file.

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Commit messages:
 - CODETOOLS-7903130: Update LICENSE

Changes: https://git.openjdk.java.net/jtreg/pull/65/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jtreg&pr=65&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7903130
  Stats: 8 lines in 1 file changed: 0 ins; 0 del; 8 mod
  Patch: https://git.openjdk.java.net/jtreg/pull/65.diff
  Fetch: git fetch https://git.openjdk.java.net/jtreg pull/65/head:pull/65

PR: https://git.openjdk.java.net/jtreg/pull/65