minor tidy: restore prior option in test, #3195
minor tidy: restore prior option in test, #3195

vlulla/data.table,vlulla/data.table,vlulla/data.table,Rdatatable/data.table,vlulla/data.table,Rdatatable/data.table,jangorecki/data.table,jangorecki/data.table,jangorecki/data.table,Rdatatable/data.table,Rdatatable/data.table,jangorecki/data.table