Sockopt: Fix indentation of the CustomSockopt block for Linux (#6568)

https://github.com/XTLS/Xray-core/pull/6568#issuecomment-5488145252

Fixes https://github.com/XTLS/Xray-core/issues/6564
Fixes https://github.com/XTLS/Xray-core/issues/6602

infra/conf/transport_sockopt.go

@@ -10,7 +10,7 @@ import (
 )
 
 type CustomSockoptConfig struct {
-	Syetem  string `json:"system"`
+	System  string `json:"system"`
 	Network string `json:"network"`
 	Level   string `json:"level"`
 	Opt     string `json:"opt"`
@@ -124,7 +124,7 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 
 	for _, copt := range c.CustomSockopt {
 		customSockopt := &internet.CustomSockopt{
-			System:  copt.Syetem,
+			System:  copt.System,
 			Network: copt.Network,
 			Level:   copt.Level,
 			Opt:     copt.Opt,