[jdk19] RFR: 8290625: Test jdk/javadoc/tool/CheckManPageOptions.java after manpage update

Wed Jul 20 12:11:12 UTC 2022

On Wed, 20 Jul 2022 05:24:12 GMT, David Holmes <dholmes at openjdk.org> wrote:

> [JDK-8278274](https://bugs.openjdk.org/browse/JDK-8278274) just brought the nroff manpage into sync with its markdown source. But this test examines the nroff manpage and needs to be updated as the `--date` option is no longer missing.
> 
> Thanks.

Although the empty string fixes the test failure I would prefer prefer the list of missing options to be empty.

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Changes requested by hannesw (Reviewer).

PR: https://git.openjdk.org/jdk19/pull/149