RFR: 8301569: list mode of jmod and jimage cannot be used normally in turkish locale

[Mandy Chung]

On Sun, 29 Jan 2023 15:37:28 GMT, Glavo <duke at openjdk.org> wrote:

> When the default Locale is `tr`, the jmod and jimage commands have the following problems:
> 
> * The jmod command does not correctly recognize the `list` mode typed in lowercase;
> * The jimage command cannot obtain the help information of the `list` mode.

`jdk.jlink` uses `Locale.ROOT` in most calls.   I suggest to change the existing references of `Locale.ENGLISH` to use `Locale.ROOT` (one in JImageTask and one in JlinkTask).   Should consider also change `VersionPropsPlugin` although not strictly necessary.

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PR Comment: https://git.openjdk.org/jdk/pull/12281#issuecomment-1570709944