RFR: JDK-8297802: display of @spec tags should mimic that of @see tags

[Pavel Rappo]

On Wed, 30 Nov 2022 04:22:24 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

> Please review a simple change to model the list used to display `@spec` tags on the list used to display `@see` tags.
> 
> In both cases, the list uses an inline list if the items are short and do not contain commas, or a bulleted list if they are long or contain commas.
> 
> The test is updated for the new output.
> 
> For now, new CSS styles are introduced for `spec-list` and `spec-list-long`, duplicating `see-list` and `see-list-long`. We might want to merge these into `tag-list` and `tag-list-long`, or some other suitably-named pair.

Assuming tests pass, looks good.

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Marked as reviewed by prappo (Reviewer).

PR: https://git.openjdk.org/jdk/pull/11426