fix versioning

Author: lucagrulla

main.go

@@ -27,9 +27,10 @@ import (
 
 const (
 	timeFormat = "2006-01-02T15:04:05"
-	version    = "4.1.1"
 )
 
+var version = "4.1.1"
+
 func timestampToTime(timeStamp *string, local bool) (time.Time, error) {
 	var zone *time.Location
 	if local {