Unique rule-set names

common/srs/binary.go

@@ -46,7 +46,7 @@ func Read(reader io.Reader, recover bool) (ruleSet option.PlainRuleSet, err erro
 		return
 	}
 	if magicBytes != MagicBytes {
-		err = E.New("invalid sing-box rule set file")
+		err = E.New("invalid sing-box rule-set file")
 		return
 	}
 	var version uint8