RFR: 8370806: Parallel: Revise logs in PSYoungGen::compute_desired_sizes

[Albert Mingkun Yang]

Trivial removing extraneous `)` in logs.

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

Commit messages:
 - pgc-log-trivial

Changes: https://git.openjdk.org/jdk/pull/28019/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28019&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8370806
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/28019.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28019/head:pull/28019

PR: https://git.openjdk.org/jdk/pull/28019