RFR: 8274003: ProcessHandleImpl.Info toString has an if check which is always true

[Roger Riggs]

Correct the check if any field has been appended to the StringBuilder in ProcessHandleImpl.Info.toString().

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Commit messages:
 - 8274003: ProcessHandleImpl.Info toString has an if check which is always true

Changes: https://git.openjdk.java.net/jdk/pull/5618/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5618&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274003
  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5618.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5618/head:pull/5618

PR: https://git.openjdk.java.net/jdk/pull/5618