RFR: JDK-8315278: Patch 'print-targets' target to print targets separated by new line [v3]

[Erik Joelsson]

On Wed, 30 Aug 2023 16:38:39 GMT, Cesar Soares Lucas <cslucas at openjdk.org> wrote:

>> Currently 'make print-targets' print all targets on the same line separated by space. That isn't only terribly to read but hard to "grep". Printing each target on a separate line seems much better.
>> 
>> Tested on: Linux x64, Windows x64 and MacOS AArch64
>
> Cesar Soares Lucas has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Adjust ident and also apply patch on print-modules and print-tests

After having investigated the history of these targets and verified that they aren't used for anything internal to the makefiles that might break, I think this is ok and will improve usability.

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Marked as reviewed by erikj (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15479#pullrequestreview-1603212736