fixup! Allow specifying alternate VS Code settings dirs

Author: ammario

main.go

@@ -65,6 +65,7 @@ func main() {
 	flag.Usage = func() {
 		fmt.Printf(`Usage: %v [FLAGS] HOST [DIR]
 Start VS Code via code-server over SSH.
+
 Environment variables:
 		`+vsCodeConfigDirEnv+`	use special VS Code settings dir.
 		`+vsCodeExtensionsDirEnv+`	use special VS Code extensions dir.