RFR: 8270837: fix typos in test TestSigParse.java

[Jie Fu]

On Fri, 16 Jul 2021 13:29:45 GMT, Harold Seigel <hseigel at openjdk.org> wrote:

> Please review this trivial fix for JDK-8270837.  The modified test was tested by running Mach5 tier1 on Linux, Mac OS, and Windows and by running the test locally on Linux x64.
> 
> Thanks, Harold

Looks good and trivial.
Thanks.

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Marked as reviewed by jiefu (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4812