Command should not be public

Author: riasvdv

src/Mjml.php

@@ -141,7 +141,7 @@ protected function checkForDeprecationWarning(string $result): string
         return $result;
     }
 
-    public function getCommand(string $templatePath, string $outputPath, $arguments): array
+    protected function getCommand(string $templatePath, string $outputPath, $arguments): array
     {
         $home = getenv('HOME');