Chore: minor refactor

internal/version/version.go

@@ -9,6 +9,8 @@ import (
 const Name = "tun2socks"
 
 var (
+	_debug = false
+
 	// Version can be set at link time by executing
 	// the command: `git describe --abbrev=0 --tags HEAD`
 	Version string
@@ -22,6 +24,10 @@ func versionize(s string) string {
 	return strings.TrimPrefix(s, "v")
 }
 
+func Debug() bool {
+	return _debug
+}
+
 func String() string {
 	if !Debug() {
 		return fmt.Sprintf("%s-%s", Name, versionize(Version))