RFR: 8274509: Remove stray * and stylistic . from doc comments

[Pavel Rappo]

Please review this trivial change.

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Commit messages:
 - Initial commit

Changes: https://git.openjdk.java.net/jdk/pull/5749/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5749&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274509
  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5749.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5749/head:pull/5749

PR: https://git.openjdk.java.net/jdk/pull/5749