Typo fix

main.go

@@ -33,12 +33,13 @@ var (
 )
 
 func init() {
-	flag.Var(&allowedHosts, "allow-host", "Repeatable flag (or a comma-separated list) for hosts to allow for the URL parameter (e.g. \"d2dktr6aauwgqs.cloudfront.net\")")
+	flag.Var(&allowedHosts, "allow-hosts", "Repeatable flag (or a comma-separated list) for hosts to allow for the URL parameter (e.g. \"d2dktr6aauwgqs.cloudfront.net\")")
+	flag.Var(&allowedImaginaryParams, "allowed-params", "A comma seperated list of parameters allows to be sent upstream. If empty, everything is allowed.")
+
 	flag.StringVar(&imaginaryURL, "imaginary-url", "http://localhost:9000", "URL to imaginary (default: http://localhost:9000)")
 	flag.Int64Var(&listenPort, "listen-port", 8080, "Port to listen on")
 	flag.Float64Var(&bucketRate, "bucket-rate", 20, "Rate limiter bucket fill rate (req/s)")
 	flag.Int64Var(&bucketSize, "bucket-size", 500, "Rate limiter bucket size (burst capacity)")
-	flag.Var(&allowedImaginaryParams, "allowed-params", "A comma seperated list of parameters allows to be sent upstream. If empty, everything is allowed.")
 
 }