Correct "post_meta_who" function for RTL themes of Question2Answer related to this topic: http://question2answer-farsi.com/ask/200/%D9%82%D8%B1%D8%A7%D8%B1-%D9%86%DA%AF%D8%B1%D9%81%D8%AA%D9%86-%D8%A7%D9%85%D8%AA%DB%8C%D8%A7%D8%B2-%D8%AF%D8%B1-%D9%BE%D8%B1%D8%A7%D9%86%D8%AA%D8%B2