Ignore empty change type or index in command line parameters

main.go

@@ -91,6 +91,9 @@ func getCmdLineParams(logger *log.Logger) (string, []int64, []satel.ChangeType,
 	allowedTypesStrings := strings.Split(*allowedTypesRaw, ",")
 	var allowedTypes []satel.ChangeType
 	for _, allowedTypeStr := range allowedTypesStrings {
+		if len(allowedTypeStr) == 0 {
+			continue
+		}
 		allowedType, err := StringToSatelChangeType(allowedTypeStr)
 		if err != nil {
 			logger.Fatalf("Error trying to understand an allowed type: %s.", err)
@@ -100,6 +103,9 @@ func getCmdLineParams(logger *log.Logger) (string, []int64, []satel.ChangeType,
 	allowedIndexesStrings := strings.Split(*allowedIndexesRaw, ",")
 	var allowedIndexes []int
 	for _, allowedIndexStr := range allowedIndexesStrings {
+		if len(allowedIndexStr) == 0 {
+			continue
+		}
 		allowedIndex, err := strconv.ParseInt(allowedIndexStr, 10, 0)
 		if err != nil {
 			logger.Fatalf("Tried to use a non-int value for one of allowed indexes: %s. That's bad.", allowedIndexStr)