RFR: 8359123: Misleading examples in jmod man page

[Ana Maria Mihalceanu]

Please review my PR. This PR includes the following:

- [ ] Fix a small typo in a word and copyright

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Commit messages:
 - Attempt to fix whitespaces
 - Apply suggestions from code review
 - Update jmod create examples
 - Update copyright text
 - Fix a small typo

Changes: https://git.openjdk.org/jdk/pull/25772/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25772&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8359123
  Stats: 27 lines in 1 file changed: 14 ins; 5 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/25772.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25772/head:pull/25772

PR: https://git.openjdk.org/jdk/pull/25772