RFR: JDK-8296445: Fix a syntax error.

[pandaapo]

Fix a syntax error in the code in jdwpTransport.h

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Commit messages:
 - Fix bug: syntax error.

Changes: https://git.openjdk.org/jdk/pull/11008/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11008&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8296445
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/11008.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11008/head:pull/11008

PR: https://git.openjdk.org/jdk/pull/11008