RFR: 8332919: SA PointerLocation needs to print a newline after dumping java thread info for JNI Local

[Chris Plummer]

If PointerLocation discovers that an address is for a JNI local ref, it will print information about the thread that owns the JNI local ref. For JavaThreads it calls the printThreadIDOn(tty) method. There's a comment on the call that says that it 'includes "\n"'. This is actually not true, and a separate println() is needed. I noticed this when using the clhsdb findpc command on a JNI local ref and noted that the next "hdsb> " prompt was printed at the end of the findpc output instead of on a new line.

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Commit messages:
 - Need a newline after printThreadIDOn() call

Changes: https://git.openjdk.org/jdk/pull/19402/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19402&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8332919
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/19402.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19402/head:pull/19402

PR: https://git.openjdk.org/jdk/pull/19402