[jdk21] RFR: 8310838: Correct range notations in MethodTypeDesc specification

[Mandy Chung]

On Mon, 26 Jun 2023 22:28:23 GMT, Chen Liang <liach at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [a197ee79](https://github.com/openjdk/jdk/commit/a197ee797b3580d9f85636522587d3f6418dff6a) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository. This is a doc-only typo fix.
> 
> The commit being backported was authored by Chen Liang on 26 Jun 2023 and was reviewed by Mandy Chung.
> 
> Thanks!

Marked as reviewed by mchung (Reviewer).

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PR Review: https://git.openjdk.org/jdk21/pull/66#pullrequestreview-1508057889