It seems strange limitation that this doesn't work and this limitation is not documented anywhere. However after digging in to the code it is pretty obvious as the MergedReport extends the CsvReport, so obviously the output will be a csv report regardless of what format option you may have provided.
It seems strange limitation that this doesn't work and this limitation is not documented anywhere. However after digging in to the code it is pretty obvious as the MergedReport extends the CsvReport, so obviously the output will be a csv report regardless of what format option you may have provided.
https://github.com/pivotal/LicenseFinder/blob/master/lib/license_finder/reports/merged_report.rb