RFR: 8248261: Add timestamps to jpackage and jpackage tests verbose output

[Andy Herrick]

All looks good, except maybe Log.error().

I think Log.error() should have the same output whether verbose or not, 
adding timestamp to the message only if verbose does not look right.

Problem is that Log.error() is used for two fundamentally different 
purposes:

1.) by Main and Arguments to display the final error message when 
jpackage is failing.

2.) by everyone else to display a serious warning message when jpackage 
is continuing (sometimes failing further on, and sometimes not).

I wouldn't mind adding timestamps only when verbose in case (2), but I 
don't think that's appropriate for case (1).

/ANdy

On 7/6/2020 8:27 PM, alexander.matveev at oracle.com wrote:
> Please review the jpackage fix for bug [1] at [2].
>
> Added timestamp to verbose and test output in form of [HH:mm:ss.SSS].
>
> [1] https://bugs.openjdk.java.net/browse/JDK-8248261
> [2] http://cr.openjdk.java.net/~almatvee/8248261/webrev.00/
>
> Thanks,
> Alexander