[Rev 01] RFR: 6636: Adding spotless for core

[Marcus Hirt]

The pull request has been updated with additional changes.

----------------

Added commits:
 - 33c95aff: Small cleanup

Changes:
  - all: https://git.openjdk.java.net/jmc/pull/5/files
  - new: https://git.openjdk.java.net/jmc/pull/5/files/933b0d7f..33c95aff

Webrevs:
 - full: https://webrevs.openjdk.java.net/jmc/5/webrev.01
 - incr: https://webrevs.openjdk.java.net/jmc/5/webrev.00-01

  Issue: https://bugs.openjdk.java.net/browse/JMC-6636
  Stats: 13 lines in 1 file changed: 9 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jmc/pull/5.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/5/head:pull/5

PR: https://git.openjdk.java.net/jmc/pull/5