RFR: 8373474: 2 Unintentional format string defect groups in jabswitch.cpp

[Damon Nguyen]

This issue is not currently causing any problems, but I am adding specifiers to explicitly print these strings. This is to avoid any issues down the line where changes to the lines building the string can cause any accidental formatting. Overall, this should be a harmless update and improves the stability and reliability of printing these strings.

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Commit messages:
 - Initial commit

Changes: https://git.openjdk.org/jdk/pull/28949/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28949&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373474
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/28949.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28949/head:pull/28949

PR: https://git.openjdk.org/jdk/pull/28949