RFR: 8345341: Fix incorrect log message in JDI stop002t test

[Chris Plummer]

The log message is wrong. Copy-n-paste bug from another part of the test.

I'd like to push this as a trivial change.

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Commit messages:
 - fix log message

Changes: https://git.openjdk.org/jdk/pull/22499/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22499&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345341
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/22499.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22499/head:pull/22499

PR: https://git.openjdk.org/jdk/pull/22499