cmd/createbatch: set default value when additionalInfo is empty

cmd/createbatch/import_csv.go

@@ -57,8 +57,12 @@ func ImportCSV(fn string) ([]pain.DrctDbtTxInf, error) {
 		if err != nil {
 			return nil, fmt.Errorf("error importing line %d, cannot parse amount: %v", i, err)
 		}
+		info := line[ImportInfo]
+		if info == "" {
+			info = EMPTY_INFO
+		}
 
-		ret[i] = pain.NewDirectDebitTransaction(dbtr, dbtrAcct, mandateInfo, amount, line[ImportInfo], i)
+		ret[i] = pain.NewDirectDebitTransaction(dbtr, dbtrAcct, mandateInfo, amount, info, i)
 	}
 	return ret, nil
 }