RFR: 8325950: Make sure all files in the JDK pass jcheck

[Andy Goryachev]

On Thu, 15 Feb 2024 17:09:17 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> All the java/util/Currency tests pass. I also searched the code for "ZZ" but could not find any references in the test.
>
> Please do not replace those tabs with spaces as they are intentional for testing the runtime to safely ignore them. I suggest replacing them with Unicode escapes (`\u000b`)

`\u000b` is VT   (vertical tab)  
`\u0009` or `\t` perhaps?

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PR Review Comment: https://git.openjdk.org/jdk/pull/17871#discussion_r1491375928