RFR: 8240347: remove undocumented options from jlink --help message

[Athijegannathan Sundararajan]

fixed constructor argument passing issue.

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Commit messages:
 - 8240347: remove undocumented options from jlink --help message

Changes: https://git.openjdk.java.net/jdk/pull/4221/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4221&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8240347
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4221.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4221/head:pull/4221

PR: https://git.openjdk.java.net/jdk/pull/4221