Replaced fwrite_expect_error with using test(...,error='<txt>')
Replaced fwrite_expect_error with using test(...,error='<txt>')

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