JdrReportManagmentTestCase.generateStandaloneJdrReport fails on my ee9 branch

On my ee9 branch JdrReportManagmentTestCase.generateStandaloneJdrReport fails when -Dts.ee9 us used. I'll disable it but we need to figure out why.

As part of whatever the fix is I'd like the sos_logs/skips.log to get special handling. Check it before checking the other files, and instead of just failing if not empty, capture the file contents and put them in the failure message. If there are future failures that will provide better info, even if the file is empty and the check passes, which would rule out a category of problems.