RFR: 8291991: Adjust the "shared class paths mismatch" message if class path logging is enabled [v4]

[Ioi Lam]

On Tue, 15 Nov 2022 18:45:32 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

>> Before this fix, with `-Xshare:on` and `-Xlog:class+path=info` and if there is a class path mismatch, the following error message will be displayed:
>> 
>> `shared class paths mismatch (hint: enable -Xlog:class+path=info to diagnose the failure)`
>> 
>> After this fix, only the first part of the error message will be displayed since the "hint" is repetitive if the user has specified `-Xlog:class+path=info.`
>> 
>> `shared class paths mismatch`
>> 
>> Passed tiers 1 and 2 testing.
>
> Calvin Cheung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   simplify FileMapInfo::fail_continue_impl

LGTM

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Marked as reviewed by iklam (Reviewer).

PR: https://git.openjdk.org/jdk/pull/11078