presence_xml: fixed log message

(cherry picked from commit 134edd5fcdfffcf18299f0673a1ecb65bd8b3241)

modules_k/presence_xml/presence_xml.c

@@ -204,7 +204,7 @@ static int mod_init(void)
 	}
 	if (bind_presence(&pres) < 0)
 	{
-		LM_ERR("Can't bind module pua\n");
+		LM_ERR("Can't bind to presence module\n");
 		return -1;
 	}