RFR: 8333477: Delete extra empty spaces in Makefiles [v2]

[SendaoYan]

On Fri, 7 Jun 2024 07:29:39 GMT, SendaoYan <syan at openjdk.org> wrote:

>> Hi all,
>>   This PR several extra empty spaces and extra empty lines in several Makefiles. It's trivial fix, no risk.
>> 
>> Thanks.
>
> SendaoYan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   delete extra empty trailing blank line in test/jdk/java/rmi/reliability/benchmark/bench/Makefile

Thanks all for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/19537#issuecomment-2154735598