RFR: JDK-8267930: Refine code for loading hsdis library [v4]

[Yasumasa Suenaga]

On Tue, 1 Jun 2021 01:49:37 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> code for loading hsdis library is redundant, this is to simplify it.
>
> Hamlin Li has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - use jio_snprintf instead of strcpy and strcat
>  - use jio_snprintf instead of strcpy and strcat

Marked as reviewed by ysuenaga (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/4260