RFR: 8336087: Doccheck: the jpackage command page doesn't show the correct command-line options

[Alexey Semenyuk]

Simple typo fix.

Old view: https://github.com/openjdk/jdk/blob/dfddbcaab886b9baa731cd748bb7f547e1903b64/src/jdk.jpackage/share/man/jpackage.md

New view: https://github.com/alexeysemenyukoracle/jdk/blob/JDK-8336087/src/jdk.jpackage/share/man/jpackage.md

Navigate to "Group value of the RPM" text to see the diff

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Commit messages:
 - 8336087: Doccheck: the jpackage command page doesn't show the correct command-line options

Changes: https://git.openjdk.org/jdk/pull/22206/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22206&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8336087
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22206.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22206/head:pull/22206

PR: https://git.openjdk.org/jdk/pull/22206