RFR: 8287811: JFR: jfr configure error message should not print stack trace

[Erik Gahlin]

Could I have a review of PR that removes a printStackTrace() for the jfr tool. 

Testing: jdk/jfr/tool

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.java.net/jdk/pull/9018/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=9018&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8287811
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/9018.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/9018/head:pull/9018

PR: https://git.openjdk.java.net/jdk/pull/9018