Clean backport of update to `CONTRIBUTING.md` to clarify that clean backports of approved fixes can be integrated without further review.
------------- Commit messages: - 8273732: Clarify review policies for clean backports in JavaFX update releases Changes: https://git.openjdk.java.net/jfx11u/pull/53/files Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=53&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8273732 Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod Patch: https://git.openjdk.java.net/jfx11u/pull/53.diff Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/53/head:pull/53 PR: https://git.openjdk.java.net/jfx11u/pull/53
