RFR(XXS) 8212877: Restore JTREG_VERBOSE value for mach5 testing

[Jonathan Gibbons]

Without commenting on the merits of this proposed change, I note that 
the test execution time is always available in the .jtr files, which is 
probably a better place to get the info than scraping the log output.

-- Jon

On 10/23/18 1:33 PM, Ekaterina Pavlova wrote:
> Hi All,
>
> Please review this extra small change which restores JTREG_VERBOSE 
> value for mach5 testing.
>
> Default JTREG_VERBOSE value was changed from "fail,error,time" to 
> "fail,error,summary" after switching to run-test framework (JDK-8212028).
> Having compact tests output is good for local users while mach5 
> testing will benefits from providing more test execution information.
> Specially having test time execution data helps to analyze any 
> tests/jobs slowness.
>
>     JBS: https://bugs.openjdk.java.net/browse/JDK-8212877
>  webrev: 
> http://cr.openjdk.java.net/~epavlova//8212877/webrev.00/index.html
> testing: tested by launching jobs in Mach5
>
> thanks,
> -katya