RFR: 965: hgupdate-sync mistakenly added to 16.0.2 backport record

[Robin Westberg]

A BPR release stream can start before update version 3, so check for that as well.

-------------

Commit messages:
 - A bpr stream can start before update version 3

Changes: https://git.openjdk.java.net/skara/pull/1116/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=1116&range=00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-965
  Stats: 17 lines in 2 files changed: 15 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/skara/pull/1116.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1116/head:pull/1116

PR: https://git.openjdk.java.net/skara/pull/1116